I wonder how many years the non avian dinosairs survived after the meteor impact. There hasn't been a lot of popular media that talks about the events happening immediately after the kpg extinction. They just jump directly to age of mammals.
Since most plants died, most herbivores died. Since there were not a lot of large herbivores, most carnivores died. Scavengers that could feed off of corpses and things that fed on dead plants (like insects) managed to survive. And small omnivores that could eat bugs etc also survived.
Catwoman I disagree. I bet you that the vast majority of dinosaurs were dead on Impact Day. Anything that couldn’t hide in a burrow was burned to a crisp by worldwide wildfires set off by rain showers of molten glass striking every part of the planet. Add in the regional tsunamis, and earthquakes and literally nothing bigger than a squirrel or roadrunner, or iguana survived on land, with the exception of crocodiles but they probably survived Impact day by diving deep underwater.
Anthony Ngu It seems like the only dinosaurs to survive were small flightless burrowing birds who ran underground on Impact Day. Small dinosaurs who didn’t have burrows suffered the same fate as their larger cousins: burned to death mostly in global wildfires.
@@isupportthecurrentthing.1514 caused by *current yet antiquated* animal agricultural practices. Dont blame the animals, blame the old systems still in place. check out permaculture and regrarians. we need herding animals. cant have prairies with out buffalo, homie.
@@briank592 We are currently using 80% of the earth's arrable land to feed the 70 billion land animals we eat each year . Most of them are raised in factory farms . Since regenerative agriculture takes far more land than factory farming , it's not a viable option . This was covered in chapter five of the IPCC report .
@@briank592 Natural grasslands are not the same as managed pasture . They support a fraction of the biodiversity . Prairies and buffalo are not dependent on us farming animals
I love this channel because of how the events are described. Saying that the Meteor was about the size of Everest and how it would have vaporised everything within 500 miles in 10 second really puts it into perspective.
But we shouldn't speak with certainty though. The meteor may have just been one of many factors affecting the large dinosaurs. For example, if they were having large pride parades and too many dinosaurs were identifying as the opposite gender, gay, or incel gamers, the birth rate could have plummeted and threatened the species.
Actually, I heard that flight isn’t actually the thing that saved birds from extinction, as most of the flying birds at the time also went extinct along with non avian dinosaurs. It might actually be the ground dwelling birds that survive, since they don’t waste a lot of energy in flight and can hide in burrow and hole under ground similar to mammals. Only after the extinction event that they start to radiate and many of their descendants evolved to fill the more airborne niche left by the extinct birds.
My take on this is that insectivorous animals survived, and a few predators that could prey on insectivores. Insects can exploit pretty much any food source and are able to reproduce quickly enough to take advantage of it, so there would have been a relative abundance of them in the years following the impact.
Malcolm Sewell Don’t forget seed eaters. Seeds are basically everywhere in a healthy ecosystem prior to the catastrophe and many species are fire proof, water proof and ice proof. A seed bank burried around can feed these small animals for decades. Freshwater ecosystem also seemed to be less affected as well since many organisms inhabiting it are used to low level of oxygen and ph.
@@waranontwiwaha9385 True, though post catastrophe we would have mostly hidden/buried seeds, many lying under a thick layer of ash. I guess the majority of these would be eaten by invertebrates. Most seed eaters today get their food directly from the plants, only those plants able to survive in low-light habitats would make it through. So some seeds in the ground and a few seasonal seeds. Hardly enough to sustain a pure seed eater, but good for omnivores. ;)
The amount of misinformed people in the comment section is bizzare, some of the things i'm seeing people type are the kinds of stuff i thought people only joked about.
Well I don’t think there was a last dinosaur since they never truly died off (I think?) They just evolved into birds and I’ve even heard people go as far as saying birds are dinosaurs
@@LESLEY484 no it’s meaningless because you either can’t spell or you don’t re read your comments before you post them. Rising O2 levels means more oxygen which was very bad for the anaerobic bacteria but since that was pretty much it for life at the time, bacteria only, life carried on. Rising CO2 levels on the other hand, trap the suns light and heat by turning visible light into infra red light which adds energy (heat) to the atmosphere we all live in. For now.
100-meter-high tsunami. That is a horror story in four words. Absolutely terrifying. And then there would have presumably been 30-50-meter-high ripples and back-ripples, etc. That site in North Dakota is amazing, especially when considering the location in its context along the ancient sea there. I believe they have found saltwater and freshwater fossils mixed together there with lots of signs of sudden burial. Very cool to learn about the cenotes: had seen photos of these before but didn't know about the relation to the impact... but as soon as the map of their locations is rendered, the circular shape among the scatter is obvious.
Wow i never realised the Chicxulub crater had been discovered so recently! i think it's kind of deep how utterly random this extinction was. it feels like it so easily could have not happened, if that meteor had for whatever reason shot through this suburb of the Milky Way a little later or a little to the left or whatever, you know? it's kind of humbling.
@@doburu4835 well you see ..... The human population increases drastically and very soon were gonna run out of resources to keep up with insane demand for agriculture
@@Dino-lemon265 those rules don't apply to us, we can change our environment as we please, for better or for worse. If some of the negative effects started to surfsce in a big way in the future. I'm sure majority of the population will act quickly and fix everything else. And stop undermining our specie's resiliency, and our unique skill none of the other animals both dead or alive possess, our intelligence and high level of awareness.
The circumstances of the K-PG Extinction event and the extinction of non-avian dinosaurs as a result of it is a supporting point for the Mesotherm Dinosaur hypothesis to me. Mesotherm animals are extremely rare nowadays, and that's probably no coincidence. Mesothermy has been proposed as a contributing reason for how dinosaurs were able to get so massive; generating some body heat to accelerate and control metabolism and growth but still relying on some environmental heat stimulus so that body heat generation would not overheat their core bodies and internal organs. The K-PG Extinction would have complicated this metabolic strategy on both fronts, reducing solar radiation and food availability. Full ectotherms could survive by letting their body temperatures, and metabolisms by extension, drop so low that their dietary needs had equally low requirements until the environment stabilized and warmed up again. Full endotherms could also find ways to survive because their total reliance of internal body heat generation meant that they retained full body stamina and cognitive awareness regardless of environmental temperature, so as long as the body was small enough that the meager food availability in the extinction aftermath was still sufficient enough to fulfill dietary needs an endotherm would've practically always been able to claim any food over animals with other metabolic strategies. Mesotherms, however, had metabolic weaknesses exploited on both ends of the spectrum. Lower global temperatures would have meant that dinosaurs couldn't have maintained an optimal body temperature to reach full physical stamina or mental responsiveness that endotherms could, yet their dietary needs were great enough that they couldn't just suppress their metabolism or enter a state of torpor like the ectotherms could. Mesotherms would have received the worst of both worlds under the circumstances, and could be why not a single species made it out the other side, despite their great diversity right before the incident.
Or they went extinct simply because they ecosystems get destroyed. Especially when you know that many birds and mammals ALSO get extinct with the dinosaurs.
@@ExtremeMadnessX yeah but the specific groups that were entirely eliminated also being the predominately mesothermic groups seems like it's indicative of some kind of pressure specifically against them. This isn't asserting mesothermy as the only factor, but it would point to a significant hurdle facing mesotherms in particular.
@@sampagano205 do not underestimate how bad it can go if a foodweb gets a major disruption. Even stuff like the end permian which was a quick extinction relatively speaking was caused by a runaway greenhouse effect that messed up the foodweb.
6:11 "This happens after a large die-off because the survivors have a brief time where there is little to no competition, so they will quickly spread and grow where the other plants have fallen" Same thing happens with bacteria. It's why you have to take so much medicine even after the symptoms go away, because if enough survivors are around, they can re-emerge stronger and more drug-resistant diseases.
"Instantly vaporizing every plant and animal, up to 500 miles away...." Wow! 500 miles instantly!? "... in under 10 seconds." Wo... wait, what? (Yes, I know he must mean they were instantly vaporized when hit by a blast wave that took about 10 seconds to travel)
the ones vaporized by the light, could only be vaporized IF they were hit by the light. Meaning... if they were behind a mountain, the light would not hit them. even a thin carbord wall can protect you from the light of a nuclear blast... (which will provoke severe burns otherwise). But the incoming shockwave will kill you.
I think that the time just after the K-Pg event would be a great "scary" Pixar movie. The protagonists could be a family of small mammals searching for food in a destroyed world populated by starving dinosaurs. A bit dark, but so are Wall-E and Finding Nemo. It could be great if done right!
We would be sentient dinosaurs, drinking Raptorade, posting on Jawsbook, voting between Democratosaurus and Republicarnotaurs (for US lizards at least), and gather around the end of the year to celebrate T-rexmas
I have read that with the largest dinosaurs the difference in size of a new born hatchling and a full grown adult was such that the adult was some 28,000 bigger than the hatchling. That's a lot of vegetation it needs to eat.
So you guys are into nature ? Did you that there's a mass extinction event happening and that we've lost over half of our vertebrates since the 70s ? It's being caused by animal agriculture . If you're an environmentalist , you must go vegan.
I use to be an underground utility contractor and was one of the many people who installed the U.S. fiberoptics loops and have dug all over the U.S. and every ware we dug in undisturbed earth we would find the layer of iridium rich silt/clay the further north the thinner the layer but it was always there.
Could be interesting to speculate how much about the kpg extinction might have changed if the meteor had struck Earth in the middle of an ocean instead of partly on land -- certainly some factors would have stayed the same and there would still have been a mass extinction, but the particulars of that extinction might have been very different, and we might even be living on a very different planet right now.
I liked this one better personally : th-cam.com/video/LV_BV3KcOu8/w-d-xo.html They're all nice though, they have that tranquil, nostalgic feeling to them. I guess I like feeling melancholic about long extinct species. Maybe alternate between them ?
I'm late to the party. Since I'm not too late, I was able to watch the majority of your channels catalog this afternoon. Top notch content. Channels like yours need to be promoted more. 🍻.
Dinosaurs didn't have a space program, but they also didn't cause their own climate change. Here's hoping that humanity becomes a species on more than one planet sooner rather than later.
Saddly humanity is not united yet so preventing climate change is impossible since I doubt Ethiopia,Russia,Brazil ETC will implement reforms in the same way parts of the west wants to especially since well the west is having internal strife over said reforms cough cough yellowvest mouvment american politics Do I need to go on?
@@Newbmann That's just ridiculous. The developed world uses the vast majority of the carbon-based energy in the economy. When the developed world can transition away from fossil fuels, then it can demonstrate to developing economies how they can do the same. Don't tell the women of Ethiopia that they can't having washing machines because of climate change. Are you going to stop using yours?
@@TacticusPrime yeah guess what russia,japan are both in the "developed world" not to mention turkey and iran are both industrializing right now When japans efforts cause stuff like this www.google.com/amp/s/amp.theguardian.com/environment/2020/mar/30/campaigners-attack-japan-shameful-climate-plans-release do you honestly belive there going to lissen when there called SHAMEFUL FOR TRYING? Stop treating this as a western issue its a global one go so go and protest in Iran oh wait I forgot that would cause a hostage crissis. Edit and keep in mind russia is INTENTINALLY TRYING to speed up global warming to make siberia more hospitable so good luck with getting russia onboard.
@@TacticusPrime oh also I really think your underestimating ethiopia I mean just look at stuff like this www.tralac.org/news/article/13204-industrial-policy-and-late-industrialisation-in-ethiopia-the-structure-and-performance-of-the-manufacturing-sector.html Yeah and also there about as comitted as china or india when it comes to increasing industrial output.
@Elizabeth Frantes of course it is...we humans as species love knowledge and have a big curiosity that we want to cover...it's obvious from the technology we developed and the scientists that studied the laws of nature and other things..if we were not curious about anything and just did not care about knowledge we would most likely live on trees just like the animal humans evolved from did
@@firegator6853 Not if global warming takes hold but environmental destruction is a separate issue and not being vegan is the cause of it . We currently use 80% of our land to feed animals. 60% of earth's mammals ,by mass , now live on farms and they consist of a handful of speicies . Veganism is imperative for environmentalists . So why aren't you vegan yet ?
@@isupportthecurrentthing.1514 widespread veganism would alleviate habitat clearing for agriculture as you say, but it wouldn't prevent clearing that occurs for industry - just two examples being forestry monoculture for your paper and cotton monoculture for your clothes
What you forget is that the preiod before the impact was a heavily tectonicly active period, this already creating a more poisonous planet then usually, because of vulcanic poisons. Not to mention climat chaos due to regular tectonic shifts.
Okay, but we'd not be talking about the kpg extinction event in the way we do if not for the asteroid. Like. Undoubtedly those things played a part, but emphasizing the decisive factor here seems pretty important, because without that we'd probably be looking at a much less severe extinction event that would likely have very different selection pressures for what survives and what fails.
It’s possible that after the strike when the nuclear winter hit then the plant eaters died out because of lack of plants, then the carnivores died because of lack of meat there were still enough dinos left to eventually make a comeback but small mouse like mammals became omnivorous scavengers surviving on whatever they could find including Dino eggs eventually finishing them off. The Hindi word for mouse and thief are the same.
Should point out that there was a study that suggest that all modern birds might have derived from a lineage of generalized ground dwelling birds based on a study of how birds survived the K-Pg mass extinction (Answer: barely...). This would imply that most if not all the Cretaceous flying/arboreal birds, Eniantornithes mostly, did went extinct and that arboreality or long distance flight may have been re-evolved in an entirely derived lineage, I.E. Aves probably because of the blocked sunlight and polluted air quality perhaps.
This doesn't seem right, because ratites, which emerged shortly after the extinction, all descend from a flying ancestor, and convergently evolved flightlessness up to 6 times in different lineages. So if all surviving birds were flightless, flight would have had to evolve again in proto-ratites only to then be lost. Flight is not easy to evolve, it's only happened a few times.
@@R01202 I was trying to be facetious while being informative. However, I acknowledge one of your two points. I have altered the comment accordingly. No one who would prefer to remain ignorant has my sympathy, however, so you can keep the other of your two points.
That's not fair to people who believe in God and dinosaurs. One of the best gifts I ever received as a child was a big book of dinosaurs given to me by my pastor. You are being unreasonable
@@DeandreSteven So, you self-identify as a radical creationist? Then again, maybe no one self-identifies like that. Let's try a different question: So you think other people would identify you as a radical creationist? Because the comment to which you responded specifically mentions "radical creationists." If you aren't that, then it isn't about you. Stop pretending you have any idea what's "reasonable" when your own reasoning skills are so sorely lacking.
What if the same cataclysmic event happen without the astroid!!? Like the Massive wild fires And big smoke clouds to extremely reduce vegetation. Instead of dinosaur's, it will be people, running around bitting everything's head off. Just saying but, Im in Michigan and we had a foggy day. Come to find out it was due to Canada's wildfires.
Man, what I would give to be able to see that asteroid impact. It's so mind-blowing trying to imagine what that would look like! Also, any chance you could do a video on trilobites (or any of those early Cambrian animals)? As a kid, I was always fascinated by dinosaurs. But I have recently become infatuated with organisms from the Cambrian/Ordovician/Silurian - animals that existed for hundreds of millions of years are absolutely incredible. I would even go as far to say that early life is more interesting to me than dinosaurs.
@@THIS---GUY I understand what you're saying but can we ever know that our inability to refute an idea isn't just a failure of our being able to imagine a better alternative explanation? There is a gap between theory and reality which we always seem to forget when we rush to claim that we know something. Knowing is a very particular thing which is different from strongly believing. Humans once 'knew' that the Sun went round the Earth.
Look at James Bay, north of my province. The lower right side really looks like a what would be our biggest crater. Look at the rim and a glacier worn peak farther out in the bay. No one still has pronounced themselves officially, some say it is, some say it's a natural formation. I've personally considered it a crater for 45 years.
Just imagine the thoughts of the animals that experianced this event. They never knew that they just experianced the, most likely, most segnificant natural event in earths history.
The most significant event complex life experienced was the Permian exitinction 252 million yers ago, and that made even the K-PG exitinction look not that bad, it was a literal armageddon.
imagine being one of these animals that survived the mass extinction....living secretly under the shadows of weird looking giants and in a blink of an eye suddenly the whole environment around you changes and becomes almost empty....it's scary when after all these things that happened on the open surface suddenly all the big creatures became super rare and slowly going extinct it's even scarier if a small creature the size of a mouse grew with no dinosaurs (since small creatures usually grow super fast and have short lifespan) wandering in the open and a giant (for the small creature) surviving non avian dinosaur suddenly appears out of nowhere and live in fear for the rest of it's short life even if they all went extinct when it's still alive well i know their intelligence maybe was not high enough for that but still in our mind it's scary
What do you think will remain after the current mass extinction has run its course ? Humans will of course never see any new animals evolve , so it's gonna be pretty lonely. It's being caused by animal agriculture which is why the world needs to go vegan ASAP to save what we can . Have you gone vegan yet ?
@@isupportthecurrentthing.1514 the most dangerous things is the pollution of nature and destroying wildlife for products not eating what we farm we can actually choose what to eat if we only choose what we raise and not what we get from the wild it's gonna be reduced And my comment has nothing to do with humans i just try to imagine the psychology of a small animal that survived after the mass extinction which was used to be surrounded by giants and it's suddenly free to roam around but still lives in fear due to what it experienced and thinks they may still around but if any last dinosaur was left it's children which never were used to live around giants would find that terrifying if they met a last surviving dinosaur or even a corpse with rotten flesh on it
@@firegator6853 Animal agriculture is the main polluter of nature. The runoff destroys waterways and creates ocean dead zones . It is also the main cause of deforestation and habitat loss . We currently use 80% of our land to feed the 70 billion animals we raise and kill each year. 60% of earth's mammals , by mass , now live on farms and they only consist of a handful of speicies. It takes far more land to raise animals than it does to eat the plants directly , this is why a vegan diet could support the population of the world on a fraction of the land we currently use . The rest could be rewilded and provide the habitat earth's creatures so desperately need .
@@isupportthecurrentthing.1514 the deforestation is mostly for human expansion and wood products greenhouses (plant food) and animal factories for animal products are a problem too the biggest problem is burning fossil fuels which causes both climate change and destroys the environment and throwing trash is also a massive problem food product factories both plants and meat are the 15% of the destruction we cause a solution for making less food factories is actually protect the food products more and use only what we raise not wild food sources 50% of the food products (animals and plants) die so if they are raised properly we have both increase in food and money for those who make it and also less factories made 385.000 babies are born each day so what we really must do is make less babies the babies we make now are so many that if we stop making babies on the planet for one week which is in total 2 million babies will not affect our population at all and this is very crazy in some words our whole existance is a problem except if we control OUR population and let the animals which people say must be controlled like seagulls alone our expansion is a problem if we protect our planet as much as possible and most importantly control our population we will maybe exist long enough for space travelling *(i personally believe this will never happen)*
Thank you, finally someone that explains the "circle of holes" in yucatan thing. Usually other channels are like "an there are signs of a huge asteroid impact..." but... what signs?! I really like your style, less frequent videos, but reaaaally good quality!
You mustn't be good at finding good science channels on youtube then. I've never seen any fail to show the crater location, it's so widely known now, I even learned it in high school. But it seems you're still not good at finding good science channels, cause this video completely fails to mention the volcanic activity going on in the Deccan at the same time, another thing i also learned in high school
It should have been mentioned at the same time in this video. Even if just as a sidenote thing, since the asteroid impact was the focus of this video, you can't talk about this extinction and mention one without the other
I was in my first year geology class just a few hours after the meteor impact site was announced. The professor spent about 5 minutes discussing the findings, and how nobody in paleontology was particularly surprised that the k/T extinction was extraterrestrial. What surprised me was that even he knew that the worst possible spot to hit the Earth and create the most massive extinction event possible was to hit a carbonate platform in the ocean, maximizing CO2 aerosolization and the resulting dust cloud and acidity.
Wonderful video! I’ve always had questions about this. You should consider doing videos like this about other extinction events as well. I’d love to learn more about the Permian extinction event since it’s probably the biggest.
I wouldn't trust him with getting the other extinctions right as he got this one wrong or misleadingly incomplete. He completely failed to mention the volcanism going on in the Deccan at the same time, I don't know where he got his information for this video but they seem outdated by a good 20 years
Brachiosaurus: Hey guys, we need to prepare...you know a meteor could hit Earth and wipe us all out!! T-Rex: FAKE NEWS!...meteors hit Earth all the time and never cause no global whaming..
bruh 😭😭😭 i went to my local museum's free day. and they had displays of fossils and this lady was explaining abt the meteor that helped kill the dinosaurs, and she mentions the iridium band in the earth found around that time. as it's not naturally found on earth so it had to have come from space. and this dude who was behind us really said outloud ' i don't think that really happened' and walked off. like why tf are you at a museum if you dont believe in any of it
Well earth was created by meteorites and debris so there probably was some traces of iridum in the earth's crust,but i guess that the earth just got the "bad" solar debris without much iridium.
I wouldn't trust him with explaining the other extinctions right, since he completely failed to mention the volcanism going on in the Deccan at the same time, I don't know where he got his information for this video but they seem outdated by a good 20 years
I have got to admit, this video was very well made. Recently, I did some research on the animals that survived the K/T event such as Purgatorius and Thoracosaurus and it turns out that these guys made it up to the early Paleogene era. This made me wonder if some dinosaurs like Tyrannosaurus, pterosaurs like Quetzalcoatulus, and extinct sea reptiles like Mosasaurus would have made it to the early Paleogene era if the mass extinction did not occur.
Perhaps, however the latest research has shown that the dinosaurs were doing just fine until the asteroid struck the Earth. Even with the eruptions from the Deccan Traps the dinosaurs still would have prevailed.
@@matthewmarx9251 Yeah that's why now the admitted theory is that it was the added effects of these two cataclysms that caused the extinction, and that a single one of them might have not been enough to cause such a loss. After all, all the major extinction events and most of the minor ones have been linked to large Igneous provinces like the Deccan Trapps, the same cannot be said about asteroid impacts. In any case my main gripe about this video is that he completely skipped this part, you can't talk about this extinction and mention one without the other
@@matthewmarx9251 watch?v=st_2C_Wrw4A there's this video that I love about large igneous provinces and how they cause extinctions, and he's got another one that goes more in depth about mantle plumes, and it's fascinating
The Deccan Traps erupted about the same time. Considering that the larger Siberian Traps are now the common culprit for the Great Dying, I think we need to factor in the role the Deccan had on the K-T extinction. One extraterrestrial cause is simple and sexy, and for that reason alone probably wrong!
I love it, i would just have added that pterosaurs died off because in the late cretaceous most species were relatively large thus needed a lot of calories to survive, the smallest late cretaceous pterosaurs we have found were pretty big, as large as sea gulls. Pterosaurs were more diverce late cretaceous than we previously thought: blog.everythingdinosaur.co.uk/blog/_archives/2018/03/15/pterosaurs-more-diverse-at-the-end-of-the-cretaceous-than-previously-thought.html In the Mediterranean they found an island full of different species dated to the late cretaceous, but again the smallest species was pretty large, birds filled the niche of small generalist late cretaceous.
Yeah thank you for pointing this out in such a nice concise reply. I tried to address this in a post as well but with other things as well in a long err wall of text. Also probably worth noting that the loss of thermals would have hit them quite hard.
@@Dragrath1 I'm no expert and haven't been able to find information on it but maybe you know; do we know pterosaur or nonavian dinosaurs body temperature? I've done sky diving and paramotor in hot Florida weather and it is freezing cold up there. I know modern birds maintain a higher body temperature than mammals because of this, from my understanding pterosaurs were better marathon flyers than any vertebrate, I would expect a low metabolism would not suffice for such animals but idk
The best explanation for the Younger Dryas is the disintegration of a comet as proposed by Clube and Napier in 1984. There are many evidences of the falling of those fragments in successive passages: Abu Hureyra, Gobekli Teppe, Cape York and Willamette meteorites... There are a lot of metallic fragments in bison and mamooth bones dated from 30,000 years ago, before YD, found in Alaska and Siberia - and hundreds of suspicious elliptic lakes around Cheliabinsky, all of them oriented towards the region where the Alaskan bones were found.
@nick sweeney you realize that's a new hypothesis right not full blown scientific theory but a hypothesis that's being investigated right now? And the investigation has been ongoing and there is a BIT of evidence for it not enough to say beyond a reasonable doubt but I mean stuff like this is there www.google.com/url?sa=t&source=web&rct=j&url=www.sciencemag.org/news/2018/11/massive-crater-under-greenland-s-ice-points-climate-altering-impact-time-humans&ved=2ahUKEwjF1OCK_pPsAhUSd6wKHVvdD9AQFjAhegQIAxAB&usg=AOvVaw1d9XHH4Seyl_D5rojP74K_
@nick sweeney Random collisions is a better explanation than random mantle plumes. Impacts can explain the origin of mantle plumes. Impact craters are visible on Moon, remnants of craters are visible on Earth. You may believe in what you want, but I do research and I'm not afraid of new plausible theories.
@nick sweeney Don't you know the basics? Learn about, do your own research before defying others to explain it to you. Surely, I have nothing to learn from you, have a nice tantrum.
@nick sweeney No, I didn't feel a tantrum in your previous reply. I anticipated the tantrum in this reply, and I am not disappointed. And positively, I'm not embarrassed. Your arrogant manners do not deserve my time. If you didn't get it yet: I have no obligation to answer your questions; I have better things to do than talk to you. This conversation is over, your little display attempt is over. Bye bye!
Im always been thinking of how rapid was the extinction event? Heres what wikipedia says! The rapidity of the extinction is a controversial issue, because some theories about the extinction's causes imply a rapid extinction over a relatively short period (from a few years to a few thousand years) while others imply longer periods. The issue is difficult to resolve because of the Signor-Lipps effect; that is, the fossil record is so incomplete that most extinct species probably died out long after the most recent fossil that has been found. Scientists have also found very few continuous beds of fossil-bearing rock that cover a time range from several million years before the K-Pg extinction to a few million years after it. The sedimentation rate and thickness of K-Pg clay from three sites suggest rapid extinction, perhaps less than 10,000 years. At one site in the Denver Basin of Colorado, the 'fern spike' lasted about 1,000 years (no more than 71 thousand years); the earliest Cenozoic mammals appeared about 185,000 years (no more than 570,000 years) after the K-Pg boundary layer was deposited. In some remote locations such as New Zealand, dinosaurs may have survived for several million years after the impact. This could be a topic for a video!!
There's a difference between Scientific Theory and your Ordinary theory doe. My big gripe is when most people don't know the difference between Theories and Laws. They think Laws are superior and has proof and consider Theories as guesses without proof.
@Antonio I appreciate your passion but I must correct you. The meteoric catastrophe that wiped out the non avian dinosaurs was a theory, long ago, based on scattered proof (few and not shaky) But after discovering proof of the iridium from the impact all over the world and even *finding the actual crater*... Going against it it's just nonesensical ;)
A misconception that a lot of people have about K-Pg is that mammals and birds were 'fine'. They almost certainly were not fine. Only a tiny fraction of bird species survived and many species of mammals went extinct. As for the populations of the survivors, they likely encountered 95-99% mortality rates in the months and years after the impact. The difference between our ancestors making it and a lot of other species dying off probably comes down to a few dozen (or less) breeding pairs worldwide. When numbers get that low the individual becomes critically important, which means that random luck does too.
I have some doubts about the amount of biomass loss you give here. Looks like a guesstimate to me, as even the way worse Permian extinction didn't give a 99% loss rate
They were certainly not fine but I don’t think their mortality rate was that high. The advantage that mammals and birds had has their size. Although having a high metabolism their size made them survive with far fewer calories than non-avian dinosaurs or pterosaurs.
It's actually a weird yet incredibly fascinating thing to speculate on how future civilizations could view the sheer abundance of our and our lifestock's bones in the future.
The variety of life-changing events on this planet that drove evolution in it's direction, gives us a clue as to why we probably won't pull up on another planet and be greeted by anything that looks even close to human. But there WILL be other life to be found. The odds are in it's favour! 🙄😎
So being able to fly often requires being semi-arboreal (this is why flying dinosaurs that aren't birds may have died out in landscapes lacking trees). We also know the most basal groups amongst birds are all flightless. Our hypotheses are currently changing to address this fact, but it is now believed that the birds that survived the extinction event actually could not fly. They are believed to have survived due to a combination of not flying, being fully endothermic rather than between endo and ectothermic like other dinosaurs, a smaller size, and the development of beaks rather than jaws and teeth.
It is theorized that the meteor wasn't enough to cause the mass extinction. Eruptions that caused flood basalt probably contributed (if not being the main cause), namely, the Deccan traps in India.
![ลองสั่งของจากแอพ temu ถูกจริงหรอ?? [โกงไหมครับ ep.88 ] | DOM](http://i.ytimg.com/vi/RTcZSQTiDZw/mqdefault.jpg)
I wonder how many years the non avian dinosairs survived after the meteor impact. There hasn't been a lot of popular media that talks about the events happening immediately after the kpg extinction. They just jump directly to age of mammals.
@Catwoman what about the small dinosaurs?
Since most plants died, most herbivores died. Since there were not a lot of large herbivores, most carnivores died. Scavengers that could feed off of corpses and things that fed on dead plants (like insects) managed to survive. And small omnivores that could eat bugs etc also survived.
Catwoman I disagree. I bet you that the vast majority of dinosaurs were dead on Impact Day. Anything that couldn’t hide in a burrow was burned to a crisp by worldwide wildfires set off by rain showers of molten glass striking every part of the planet. Add in the regional tsunamis, and earthquakes and literally nothing bigger than a squirrel or roadrunner, or iguana survived on land, with the exception of crocodiles but they probably survived Impact day by diving deep underwater.
Anthony Ngu It seems like the only dinosaurs to survive were small flightless burrowing birds who ran underground on Impact Day. Small dinosaurs who didn’t have burrows suffered the same fate as their larger cousins: burned to death mostly in global wildfires.
@@chrisamon4551 makes sense.
I really enjoyed this video. Can you do another one on the other two mass extinctions? This would be awesome!
Did you know that the current mass extinction is being caused by animal agriculture ?
There's 4 more, hey, more content.
@@isupportthecurrentthing.1514 caused by *current yet antiquated* animal agricultural practices. Dont blame the animals, blame the old systems still in place. check out permaculture and regrarians. we need herding animals. cant have prairies with out buffalo, homie.
@@briank592 We are currently using 80% of the earth's arrable land to feed the 70 billion land animals we eat each year . Most of them are raised in factory farms .
Since regenerative agriculture takes far more land than factory farming , it's not a viable option .
This was covered in chapter five of the IPCC report .
@@briank592 Natural grasslands are not the same as managed pasture . They support a fraction of the biodiversity .
Prairies and buffalo are not dependent on us farming animals
I love this channel because of how the events are described. Saying that the Meteor was about the size of Everest and how it would have vaporised everything within 500 miles in 10 second really puts it into perspective.
he forgot to mention that it hit the earth at 50,000 miles per hour
The description of 10 kilometers wide from Walking with Beasts still shakes me.
@@NGRevenant nobody knows how fast it really was
But we shouldn't speak with certainty though. The meteor may have just been one of many factors affecting the large dinosaurs. For example, if they were having large pride parades and too many dinosaurs were identifying as the opposite gender, gay, or incel gamers, the birth rate could have plummeted and threatened the species.
@@BoopSnoot not sure if this is a joke but, good theory I guess?
Actually, I heard that flight isn’t actually the thing that saved birds from extinction, as most of the flying birds at the time also went extinct along with non avian dinosaurs. It might actually be the ground dwelling birds that survive, since they don’t waste a lot of energy in flight and can hide in burrow and hole under ground similar to mammals. Only after the extinction event that they start to radiate and many of their descendants evolved to fill the more airborne niche left by the extinct birds.
Nice
My take on this is that insectivorous animals survived, and a few predators that could prey on insectivores. Insects can exploit pretty much any food source and are able to reproduce quickly enough to take advantage of it, so there would have been a relative abundance of them in the years following the impact.
Malcolm Sewell
Don’t forget seed eaters. Seeds are basically everywhere in a healthy ecosystem prior to the catastrophe and many species are fire proof, water proof and ice proof. A seed bank burried around can feed these small animals for decades. Freshwater ecosystem also seemed to be less affected as well since many organisms inhabiting it are used to low level of oxygen and ph.
@@waranontwiwaha9385 True, though post catastrophe we would have mostly hidden/buried seeds, many lying under a thick layer of ash. I guess the majority of these would be eaten by invertebrates. Most seed eaters today get their food directly from the plants, only those plants able to survive in low-light habitats would make it through. So some seeds in the ground and a few seasonal seeds. Hardly enough to sustain a pure seed eater, but good for omnivores. ;)
How can birds be descendants of dinosaurs if they existed with dinosaurs?
These videos are relaxing even when they're about instantaneous vaporization and apocalyptic catastropes
It's the sound behind his narration , u can barely hear it, beautiful meditative music
I agree! I only found this channel today and I'm addicted!
Please do another video on synapsids, especially some of the weird ones. I feel like they're a hugely unappreciated group of animals.
Synapsids are for nERDS, Evolve breasts later in life nErds and maybe cut back on the motherly instict lmao
@@Sea_Leech
What?
@@Sea_Leech Speaking of evolution, it seems you have some more to do.
YES pleaseeeee that'd be so cool, they are so underrated
@@Sea_Leech TH-cam app is for ages 13+ only if you read the app store
The amount of misinformed people in the comment section is bizzare, some of the things i'm seeing people type are the kinds of stuff i thought people only joked about.
Never underestimate the amount of stupidity in the world
I absolutely love seeing illustrations of the meteor impact minutes after or minutes before the impact
Imagine the last moment of the last dinosaur. It's a story that lost in the universe forever...
Well I don’t think there was a last dinosaur since they never truly died off (I think?) They just evolved into birds and I’ve even heard people go as far as saying birds are dinosaurs
@@Sub4CarClips yes, they are descended from avian dinosaurs.. wtf are you on?! meth?!
Its crazy to really think about it
Dinosaurs still exist. We call them birds nowadays
@@AifDaimon chill, that’s just some dumb kid
Its always beautiful when something proposed through mathematics is discovered, and fits perfectly with how the mathematics predicts it.
I want one
What slew the mighty saurian lords?
A mountain falling from the sky
And all that lived were verminous hordes
The ancestors of you and I.
I love the way this is narrated, it really made me emotionally invested on the events and it put the whole ordeal in a new perspective
The last time I was this early rising atmospheric O2 levels almost killed all life on earth
This comment has way fewer likes than it should
@@cattibingo Why, because it is absolutely meaningless?
@@pmboston exactly
@@LESLEY484 no it’s meaningless because you either can’t spell or you don’t re read your comments before you post them. Rising O2 levels means more oxygen which was very bad for the anaerobic bacteria but since that was pretty much it for life at the time, bacteria only, life carried on. Rising CO2 levels on the other hand, trap the suns light and heat by turning visible light into infra red light which adds energy (heat) to the atmosphere we all live in. For now.
@@pmboston still dont understand how events that happened on our planet is meaningless though but get to each their own
What can’t my dude make fascinating?
This channel is well named! I am drawn to this media like a month to light.
Edit: meant moth! Leaving it tho
Brilliant observation! I can't believe I only just realized what the name "Moth Light" meant! xD
Your first sentence is not a sentence and idk wtf you are trying to say there.
@@chrisofstars huh
@@chrisofstars His first sentence makes perfect sense.
Moth, right?
100-meter-high tsunami. That is a horror story in four words. Absolutely terrifying. And then there would have presumably been 30-50-meter-high ripples and back-ripples, etc. That site in North Dakota is amazing, especially when considering the location in its context along the ancient sea there. I believe they have found saltwater and freshwater fossils mixed together there with lots of signs of sudden burial. Very cool to learn about the cenotes: had seen photos of these before but didn't know about the relation to the impact... but as soon as the map of their locations is rendered, the circular shape among the scatter is obvious.
Wow i never realised the Chicxulub crater had been discovered so recently!
i think it's kind of deep how utterly random this extinction was. it feels like it so easily could have not happened, if that meteor had for whatever reason shot through this suburb of the Milky Way a little later or a little to the left or whatever, you know? it's kind of humbling.
I mean the meteor most likely came from the solar system
I would love to see a video about the survivors of the asteroid impact and the first thousand years afterward.
Not sure they know,they may know the first million,but thousand is a bit too specific
Apocalypse movies are wrong, the apocalypse has already happened so many times.
Did you know there's a current mass extinction event happening ? It's being caused by animal agriculture
And will probably happen again! Humans go extinct next time?
@@JaegerLeMaserati nah, unlike before us, we are smart and possibly able to prevent our early extinction
@@doburu4835 well you see ..... The human population increases drastically and very soon were gonna run out of resources to keep up with insane demand for agriculture
@@Dino-lemon265 those rules don't apply to us, we can change our environment as we please, for better or for worse. If some of the negative effects started to surfsce in a big way in the future. I'm sure majority of the population will act quickly and fix everything else. And stop undermining our specie's resiliency, and our unique skill none of the other animals both dead or alive possess, our intelligence and high level of awareness.
The circumstances of the K-PG Extinction event and the extinction of non-avian dinosaurs as a result of it is a supporting point for the Mesotherm Dinosaur hypothesis to me. Mesotherm animals are extremely rare nowadays, and that's probably no coincidence. Mesothermy has been proposed as a contributing reason for how dinosaurs were able to get so massive; generating some body heat to accelerate and control metabolism and growth but still relying on some environmental heat stimulus so that body heat generation would not overheat their core bodies and internal organs.
The K-PG Extinction would have complicated this metabolic strategy on both fronts, reducing solar radiation and food availability. Full ectotherms could survive by letting their body temperatures, and metabolisms by extension, drop so low that their dietary needs had equally low requirements until the environment stabilized and warmed up again. Full endotherms could also find ways to survive because their total reliance of internal body heat generation meant that they retained full body stamina and cognitive awareness regardless of environmental temperature, so as long as the body was small enough that the meager food availability in the extinction aftermath was still sufficient enough to fulfill dietary needs an endotherm would've practically always been able to claim any food over animals with other metabolic strategies. Mesotherms, however, had metabolic weaknesses exploited on both ends of the spectrum. Lower global temperatures would have meant that dinosaurs couldn't have maintained an optimal body temperature to reach full physical stamina or mental responsiveness that endotherms could, yet their dietary needs were great enough that they couldn't just suppress their metabolism or enter a state of torpor like the ectotherms could. Mesotherms would have received the worst of both worlds under the circumstances, and could be why not a single species made it out the other side, despite their great diversity right before the incident.
Or they went extinct simply because they ecosystems get destroyed. Especially when you know that many birds and mammals ALSO get extinct with the dinosaurs.
@@ExtremeMadnessX yeah but the specific groups that were entirely eliminated also being the predominately mesothermic groups seems like it's indicative of some kind of pressure specifically against them. This isn't asserting mesothermy as the only factor, but it would point to a significant hurdle facing mesotherms in particular.
That's very interesting
@@sampagano205 do not underestimate how bad it can go if a foodweb gets a major disruption. Even stuff like the end permian which was a quick extinction relatively speaking was caused by a runaway greenhouse effect that messed up the foodweb.
6:11 "This happens after a large die-off because the survivors have a brief time where there is little to no competition, so they will quickly spread and grow where the other plants have fallen"
Same thing happens with bacteria. It's why you have to take so much medicine even after the symptoms go away, because if enough survivors are around, they can re-emerge stronger and more drug-resistant diseases.
"Instantly vaporizing every plant and animal, up to 500 miles away...."
Wow! 500 miles instantly!?
"... in under 10 seconds."
Wo... wait, what?
(Yes, I know he must mean they were instantly vaporized when hit by a blast wave that took about 10 seconds to travel)
the ones vaporized by the light, could only be vaporized IF they were hit by the light. Meaning... if they were behind a mountain, the light would not hit them.
even a thin carbord wall can protect you from the light of a nuclear blast... (which will provoke severe burns otherwise). But the incoming shockwave will kill you.
"So if they were outside of blast radius, they would've had a much better chance at survival..."
Alligators and iguanas in Florida, "Hold my beer."
@U D imagine the Florida cave man , uuuffff.
@@july9566 Not even the most primitive primates lived at that time, let alone Humans.
@@eybaza6018 it was a joke my friend. I am a huge fan of dinosaurs since I was a child , I am well aware of the what? 64.7 million years between us ?
I think that the time just after the K-Pg event would be a great "scary" Pixar movie. The protagonists could be a family of small mammals searching for food in a destroyed world populated by starving dinosaurs. A bit dark, but so are Wall-E and Finding Nemo. It could be great if done right!
It was Lord Beerus he confirmed it .. its canon.
I wonder: if the meteor had never hit the Earth, what kind of life would be here today.
We would be sentient dinosaurs, drinking Raptorade, posting on Jawsbook, voting between Democratosaurus and Republicarnotaurs (for US lizards at least), and gather around the end of the year to celebrate T-rexmas
There wouldn't hominids species that's for sure.
Anything larger than an Dog would die.
we wouldn't exist lol
There's a speculative evolution project by Dr.Polaris called ,,alter Earth'' that explores this idea.
Can you make a video on the evolution of praying mantis and mantidflies and how even though they're from different groups they look so similar
I have read that with the largest dinosaurs the difference in size of a new born hatchling and a full grown adult was such that the adult was some 28,000 bigger than the hatchling. That's a lot of vegetation it needs to eat.
True.
This channel is my favorite
Thank God I TH-cam recommend this channel to me 😍
check out PBS Eons too, if you haven't already!
@@Jesse__H and Ben G Thomas
So you guys are into nature ? Did you that there's a mass extinction event happening and that we've lost over half of our vertebrates since the 70s ?
It's being caused by animal agriculture . If you're an environmentalist , you must go vegan.
@@isupportthecurrentthing.1514 I MUST do nothing.... MUST is where scary things begin.
@@Jesse__H I love that channel also but thanks for telling
6:10 this canyon instantly reminded me of the one in Walking with Dinosaurs Time of the Titans episode.
JHorsti
If I remember correctly, the locations for the episodes were filmed in actual places so maybe it’s the same place idk.
Same.
Actually it's the same place
The smell of prey 🙄
Its fern canyon (wonder how it got its name) located in Humboldt County in North California :D
@@Shootyshoot-ls3xj
Wow, thanks for the information!
I use to be an underground utility contractor and was one of the many people who installed the U.S. fiberoptics loops and have dug all over the U.S. and every ware we dug in undisturbed earth we would find the layer of iridium rich silt/clay the further north the thinner the layer but it was always there.
Could be interesting to speculate how much about the kpg extinction might have changed if the meteor had struck Earth in the middle of an ocean instead of partly on land -- certainly some factors would have stayed the same and there would still have been a mass extinction, but the particulars of that extinction might have been very different, and we might even be living on a very different planet right now.
Amazing content! Thanks
It is very confusing when you mix imperial and metric units. Please be consistent and use metric (the system recognized in science)
I'm sorry I thought this was America?
@@THIS---GUY bruh u ain’t gotta be in America to watch this
@@baijiwastaken I'm not from USA is a south park joke
@@THIS---GUY shit my bad
why is it said 66 million years ago now when did a million year pass without me knowing ?
It was like 65.5 million years ago or something, people usually just round it up to 66 million.
Hey I’ve found ammonite fossils lol just on the edge of my Rez lol beautiful gem stones and fossils
The music 'Ross Bugden - Ascension' was the best fit
I liked this one better personally :
th-cam.com/video/LV_BV3KcOu8/w-d-xo.html
They're all nice though, they have that tranquil, nostalgic feeling to them. I guess I like feeling melancholic about long extinct species.
Maybe alternate between them ?
@@rufusfauxnom5737 what the background music name?
@@emperorzerstorer4360 Couldn't find the name sorry, so I linked a video with it instead
@@rufusfauxnom5737 ok, because I love the music so much
I'm late to the party. Since I'm not too late, I was able to watch the majority of your channels catalog this afternoon. Top notch content. Channels like yours need to be promoted more. 🍻.
That chart really helped to put into scale just how catastrophic the Permian mass extinction was.
Dinosaurs didn't have a space program, but they also didn't cause their own climate change. Here's hoping that humanity becomes a species on more than one planet sooner rather than later.
Saddly humanity is not united yet so preventing climate change is impossible since I doubt Ethiopia,Russia,Brazil ETC will implement reforms in the same way parts of the west wants to especially since well the west is having internal strife over said reforms cough cough yellowvest mouvment american politics Do I need to go on?
You never heard of the sauropod fart hypothesis for why the atmosphere was like that?
@@Newbmann That's just ridiculous. The developed world uses the vast majority of the carbon-based energy in the economy. When the developed world can transition away from fossil fuels, then it can demonstrate to developing economies how they can do the same. Don't tell the women of Ethiopia that they can't having washing machines because of climate change. Are you going to stop using yours?
@@TacticusPrime yeah guess what russia,japan are both in the "developed world" not to mention turkey and iran are both industrializing right now
When japans efforts cause stuff like this
www.google.com/amp/s/amp.theguardian.com/environment/2020/mar/30/campaigners-attack-japan-shameful-climate-plans-release do you honestly belive there going to lissen when there called SHAMEFUL FOR TRYING?
Stop treating this as a western issue its a global one go so go and protest in Iran oh wait I forgot that would cause a hostage crissis.
Edit and keep in mind russia is INTENTINALLY TRYING to speed up global warming to make siberia more hospitable so good luck with getting russia onboard.
@@TacticusPrime oh also I really think your underestimating ethiopia I mean just look at stuff like this www.tralac.org/news/article/13204-industrial-policy-and-late-industrialisation-in-ethiopia-the-structure-and-performance-of-the-manufacturing-sector.html
Yeah and also there about as comitted as china or india when it comes to increasing industrial output.
I always watch these videos twice. One time before bed and a second time as I wake up in the morning :)
Best nature show on the net!
Love it.
"The More You Know".
@Elizabeth Frantes of course it is...we humans as species love knowledge and have a big curiosity that we want to cover...it's obvious from the technology we developed and the scientists that studied the laws of nature and other things..if we were not curious about anything and just did not care about knowledge we would most likely live on trees just like the animal humans evolved from did
Did you know that animal agriculture is responsible for the current mass extinction event ?
If you're an environmentalist , you must be vegan .
@@isupportthecurrentthing.1514 going vegan is not enough
@@firegator6853 Not if global warming takes hold but environmental destruction is a separate issue and not being vegan is the cause of it . We currently use 80% of our land to feed animals. 60% of earth's mammals ,by mass , now live on farms and they consist of a handful of speicies . Veganism is imperative for environmentalists .
So why aren't you vegan yet ?
@@isupportthecurrentthing.1514 widespread veganism would alleviate habitat clearing for agriculture as you say, but it wouldn't prevent clearing that occurs for industry - just two examples being forestry monoculture for your paper and cotton monoculture for your clothes
Birds are dinosaurs, Chickens are even classed as theropoda like T-Rex.
Hahahahhahahuahau sure
@WITE FOX so crazy cause its not true
What you forget is that the preiod before the impact was a heavily tectonicly active period, this already creating a more poisonous planet then usually, because of vulcanic poisons.
Not to mention climat chaos due to regular tectonic shifts.
Okay, but we'd not be talking about the kpg extinction event in the way we do if not for the asteroid. Like. Undoubtedly those things played a part, but emphasizing the decisive factor here seems pretty important, because without that we'd probably be looking at a much less severe extinction event that would likely have very different selection pressures for what survives and what fails.
@@sampagano205 Yes, without the asteroid this would have been much less severe.
Those poor dinosaurs had their vacations in Cancun completely ruined!
Fate is whimsical.Because of that asteroid we are here watching this video.
But another asteroid can wipe everything out before the video even finished :c
I just want to say that i really like this channel. Keep up the good work. 👍
It’s possible that after the strike when the nuclear winter hit then the plant eaters died out because of lack of plants, then the carnivores died because of lack of meat there were still enough dinos left to eventually make a comeback but small mouse like mammals became omnivorous scavengers surviving on whatever they could find including Dino eggs eventually finishing them off. The Hindi word for mouse and thief are the same.
So basically, we evolved from rats. Some did not evolve, they still rats
I guess they will be the lucky ones next time.
Should point out that there was a study that suggest that all modern birds might have derived from a lineage of generalized ground dwelling birds based on a study of how birds survived the K-Pg mass extinction (Answer: barely...). This would imply that most if not all the Cretaceous flying/arboreal birds, Eniantornithes mostly, did went extinct and that arboreality or long distance flight may have been re-evolved in an entirely derived lineage, I.E. Aves probably because of the blocked sunlight and polluted air quality perhaps.
This doesn't seem right, because ratites, which emerged shortly after the extinction, all descend from a flying ancestor, and convergently evolved flightlessness up to 6 times in different lineages. So if all surviving birds were flightless, flight would have had to evolve again in proto-ratites only to then be lost. Flight is not easy to evolve, it's only happened a few times.
Purgatorius is such a poetic name for a mammal in this period
Commenting here before the inevitable tirade of radical Creationists find this one.
Your usage of "tirade" is incorrect.
As an example, I might go on a tirade about Creationists.
@@R01202 I don't know. You're the one who has a problem with me providing information to someone, so you tell me why you prefer ignorance.
@@R01202 I was trying to be facetious while being informative. However, I acknowledge one of your two points.
I have altered the comment accordingly.
No one who would prefer to remain ignorant has my sympathy, however, so you can keep the other of your two points.
That's not fair to people who believe in God and dinosaurs. One of the best gifts I ever received as a child was a big book of dinosaurs given to me by my pastor. You are being unreasonable
@@DeandreSteven So, you self-identify as a radical creationist?
Then again, maybe no one self-identifies like that.
Let's try a different question: So you think other people would identify you as a radical creationist?
Because the comment to which you responded specifically mentions "radical creationists." If you aren't that, then it isn't about you.
Stop pretending you have any idea what's "reasonable" when your own reasoning skills are so sorely lacking.
It's crazy to me that we are looking at the exact rock layer that killed off the non-avian dinosaurs...
When did the K-T Extinction start being called the K-Pg Extinction? I am sure it used to be called K-T Event.
It can be called both interchangeably.
@@richardblazer8070Ah. Thank you.
6:09 looks exactly like the spot from walking with dinosaurs and Jurassic Park 2 where that one dude gets eaten by a pack of little dinos.
That's cause it is from walking with dinosaurs
I still wanna know where it is
those little dinos were from a Triassic species called Compsognathus
That’s because it is. It’s fern canyon, California.
Wasn't it that place where the stegosaurus got paranoid and killed a little apatosaurus? And then two allos came along
Love these videos. They really get me dreaming and imagining other worlds. Amazing stuff
Careful stating well known scientific facts on the internet you might offend someone lol
People: Man 2020 was a really bad year.
Dinosaurs: Dude if you think *that* was bad, lemme tell you about this one time...
What if the same cataclysmic event happen without the astroid!!? Like the Massive wild fires And big smoke clouds to extremely reduce vegetation. Instead of dinosaur's, it will be people, running around bitting everything's head off.
Just saying but, Im in Michigan and we had a foggy day. Come to find out it was due to Canada's wildfires.
That wouldn't explain the massive geological changes found in North and South America
Man, what I would give to be able to see that asteroid impact. It's so mind-blowing trying to imagine what that would look like!
Also, any chance you could do a video on trilobites (or any of those early Cambrian animals)? As a kid, I was always fascinated by dinosaurs. But I have recently become infatuated with organisms from the Cambrian/Ordovician/Silurian - animals that existed for hundreds of millions of years are absolutely incredible. I would even go as far to say that early life is more interesting to me than dinosaurs.
Some people have a really hard time imagining things. It’s called aphantasia. Most people find it really easy.
Isn't it a bit of a claim to say that we know this? It's a strong hypothesis. That's not the same as knowing.
Pretty irrefutable evidence at this point
@@THIS---GUY I understand what you're saying but can we ever know that our inability to refute an idea isn't just a failure of our being able to imagine a better alternative explanation? There is a gap between theory and reality which we always seem to forget when we rush to claim that we know something. Knowing is a very particular thing which is different from strongly believing. Humans once 'knew' that the Sun went round the Earth.
Look at James Bay, north of my province. The lower right side really looks like a what would be our biggest crater. Look at the rim and a glacier worn peak farther out in the bay. No one still has pronounced themselves officially, some say it is, some say it's a natural formation. I've personally considered it a crater for 45 years.
It might be a crater from a different, albeit smaller impact.
Nah the earth is flat and the dinos died bc they drank too much Sunny D
The worse day in Earth's history.....
Just imagine the thoughts of the animals that experianced this event.
They never knew that they just experianced the, most likely, most segnificant natural event in earths history.
The most significant event complex life experienced was the Permian exitinction 252 million yers ago, and that made even the K-PG exitinction look not that bad, it was a literal armageddon.
imagine being one of these animals that survived the mass extinction....living secretly under the shadows of weird looking giants and in a blink of an eye suddenly the whole environment around you changes and becomes almost empty....it's scary when after all these things that happened on the open surface suddenly all the big creatures became super rare and slowly going extinct it's even scarier if a small creature the size of a mouse grew with no dinosaurs (since small creatures usually grow super fast and have short lifespan) wandering in the open and a giant (for the small creature) surviving non avian dinosaur suddenly appears out of nowhere and live in fear for the rest of it's short life even if they all went extinct when it's still alive
well i know their intelligence maybe was not high enough for that but still in our mind it's scary
What do you think will remain after the current mass extinction has run its course ?
Humans will of course never see any new animals evolve , so it's gonna be pretty lonely.
It's being caused by animal agriculture which is why the world needs to go vegan ASAP to save what we can .
Have you gone vegan yet ?
@@isupportthecurrentthing.1514 the most dangerous things is the pollution of nature and destroying wildlife for products not eating what we farm we can actually choose what to eat if we only choose what we raise and not what we get from the wild it's gonna be reduced
And my comment has nothing to do with humans i just try to imagine the psychology of a small animal that survived after the mass extinction which was used to be surrounded by giants and it's suddenly free to roam around but still lives in fear due to what it experienced and thinks they may still around but if any last dinosaur was left it's children which never were used to live around giants would find that terrifying if they met a last surviving dinosaur or even a corpse with rotten flesh on it
@@firegator6853 Animal agriculture is the main polluter of nature. The runoff destroys waterways and creates ocean dead zones . It is also the main cause of deforestation and habitat loss .
We currently use 80% of our land to feed the 70 billion animals we raise and kill each year. 60% of earth's mammals , by mass , now live on farms and they only consist of a handful of speicies.
It takes far more land to raise animals than it does to eat the plants directly , this is why a vegan diet could support the population of the world on a fraction of the land we currently use . The rest could be rewilded and provide the habitat earth's creatures so desperately need .
@@isupportthecurrentthing.1514 the deforestation is mostly for human expansion and wood products greenhouses (plant food) and animal factories for animal products are a problem too the biggest problem is burning fossil fuels which causes both climate change and destroys the environment and throwing trash is also a massive problem
food product factories both plants and meat are the 15% of the destruction we cause
a solution for making less food factories is actually protect the food products more and use only what we raise not wild food sources 50% of the food products (animals and plants) die so if they are raised properly we have both increase in food and money for those who make it and also less factories made
385.000 babies are born each day so what we really must do is make less babies
the babies we make now are so many that if we stop making babies on the planet for one week which is in total 2 million babies will not affect our population at all and this is very crazy
in some words our whole existance is a problem except if we control OUR population and let the animals which people say must be controlled like seagulls alone our expansion is a problem if we protect our planet as much as possible and most importantly control our population we will maybe exist long enough for space travelling *(i personally believe this will never happen)*
Really proud of your growth. Been a sub since May of 2019 and have enjoyed every video you've uploaded, incredible job.
I'm just here for the Bible folk comments. I'll wait..
Thank you, finally someone that explains the "circle of holes" in yucatan thing. Usually other channels are like "an there are signs of a huge asteroid impact..." but... what signs?!
I really like your style, less frequent videos, but reaaaally good quality!
You mustn't be good at finding good science channels on youtube then. I've never seen any fail to show the crater location, it's so widely known now, I even learned it in high school. But it seems you're still not good at finding good science channels, cause this video completely fails to mention the volcanic activity going on in the Deccan at the same time, another thing i also learned in high school
@@samarkand1585 you did not understand me
@@manuelpena3988 I'm sorry then, I'm all ears
Ooh. Next do a video about the Deccan traps please.
It should have been mentioned at the same time in this video. Even if just as a sidenote thing, since the asteroid impact was the focus of this video, you can't talk about this extinction and mention one without the other
I was in my first year geology class just a few hours after the meteor impact site was announced. The professor spent about 5 minutes discussing the findings, and how nobody in paleontology was particularly surprised that the k/T extinction was extraterrestrial. What surprised me was that even he knew that the worst possible spot to hit the Earth and create the most massive extinction event possible was to hit a carbonate platform in the ocean, maximizing CO2 aerosolization and the resulting dust cloud and acidity.
like it was aimed...
Great channel. Simon Conway Morris made a list of all things that happened after the impact, from the span of minutes to years.
Thanks! I always read the comment sections, just for gems like this! Edit: was it in written form or recorded, do you recall?
@@regular-joe I do not know if you mean it in an ironic or sarcastic way. But you can find that list in one of Stephen Stearn's lectures on evolution.
@@rksmiths2773 No, I was absolutely in earnest. Thank you very much for the additional info.
If I ever build a time machine, that's one event I'd love to go back and see. Just imagine?
You guys have to visit South Dakota ! The black hills and the badlands ! I love that state. One of my favorite places to go .
Thank you for answering a question I've been asking myself for a long time, regarding what happened to the small dinosaurs.
Wonderful video! I’ve always had questions about this. You should consider doing videos like this about other extinction events as well. I’d love to learn more about the Permian extinction event since it’s probably the biggest.
I wouldn't trust him with getting the other extinctions right as he got this one wrong or misleadingly incomplete. He completely failed to mention the volcanism going on in the Deccan at the same time, I don't know where he got his information for this video but they seem outdated by a good 20 years
Brachiosaurus: Hey guys, we need to prepare...you know a meteor could hit Earth and wipe us all out!!
T-Rex: FAKE NEWS!...meteors hit Earth all the time and never cause no global whaming..
bruh 😭😭😭 i went to my local museum's free day. and they had displays of fossils and this lady was explaining abt the meteor that helped kill the dinosaurs, and she mentions the iridium band in the earth found around that time. as it's not naturally found on earth so it had to have come from space. and this dude who was behind us really said outloud ' i don't think that really happened' and walked off. like why tf are you at a museum if you dont believe in any of it
Well earth was created by meteorites and debris so there probably was some traces of iridum in the earth's crust,but i guess that the earth just got the "bad" solar debris without much iridium.
Everyone else: focussing on actual topic of the video
Me: Father and son scientists, that's so cool!
Amazing!! Can we have a video about The Great Dying next????
I wouldn't trust him with explaining the other extinctions right, since he completely failed to mention the volcanism going on in the Deccan at the same time, I don't know where he got his information for this video but they seem outdated by a good 20 years
@@samarkand1585 this was about the meteor not the extinction
@@paleoleft 'The meteor that killed off the dinosaurs'
-'this wasn't about the extinction'
Man you have real issues with reading I swear
@@samarkand1585 the subject of the sentence and video is the meteor itself. you can't seem to read yet you critique me lmao
I have got to admit, this video was very well made. Recently, I did some research on the animals that survived the K/T event such as Purgatorius and Thoracosaurus and it turns out that these guys made it up to the early Paleogene era. This made me wonder if some dinosaurs like Tyrannosaurus, pterosaurs like Quetzalcoatulus, and extinct sea reptiles like Mosasaurus would have made it to the early Paleogene era if the mass extinction did not occur.
Very well made yet he completely skipped the Deccan trapps? Without this mention his whole description of the extinction is completely misleading
Perhaps, however the latest research has shown that the dinosaurs were doing just fine until the asteroid struck the Earth. Even with the eruptions from the Deccan Traps the dinosaurs still would have prevailed.
@@matthewmarx9251 Yeah that's why now the admitted theory is that it was the added effects of these two cataclysms that caused the extinction, and that a single one of them might have not been enough to cause such a loss. After all, all the major extinction events and most of the minor ones have been linked to large Igneous provinces like the Deccan Trapps, the same cannot be said about asteroid impacts. In any case my main gripe about this video is that he completely skipped this part, you can't talk about this extinction and mention one without the other
@@samarkand1585 You know what? You're right, he should have mentioned the Deccan Traps in this video.
@@matthewmarx9251 watch?v=st_2C_Wrw4A
there's this video that I love about large igneous provinces and how they cause extinctions, and he's got another one that goes more in depth about mantle plumes, and it's fascinating
Did the new album from "the Ocean" inspire this video? :D
Chixulub you naughty rock you...
The Deccan Traps erupted about the same time. Considering that the larger Siberian Traps are now the common culprit for the Great Dying, I think we need to factor in the role the Deccan had on the K-T extinction. One extraterrestrial cause is simple and sexy, and for that reason alone probably wrong!
Yeah his failure to even just mention that makes his video incomplete and misleading
I love it, i would just have added that pterosaurs died off because in the late cretaceous most species were relatively large thus needed a lot of calories to survive, the smallest late cretaceous pterosaurs we have found were pretty big, as large as sea gulls. Pterosaurs were more diverce late cretaceous than we previously thought: blog.everythingdinosaur.co.uk/blog/_archives/2018/03/15/pterosaurs-more-diverse-at-the-end-of-the-cretaceous-than-previously-thought.html
In the Mediterranean they found an island full of different species dated to the late cretaceous, but again the smallest species was pretty large, birds filled the niche of small generalist late cretaceous.
Yeah thank you for pointing this out in such a nice concise reply. I tried to address this in a post as well but with other things as well in a long err wall of text.
Also probably worth noting that the loss of thermals would have hit them quite hard.
@@Dragrath1 I'm no expert on thermals but from my understanding pterosaurs dinosaurs mammals and some aquatic reptiles were all warm blooded.
@@trvth1s Yeah exactly to varying degrees there were also some crocodillian relatives that had some degree of endothermy
@@Dragrath1 I'm no expert and haven't been able to find information on it but maybe you know; do we know pterosaur or nonavian dinosaurs body temperature? I've done sky diving and paramotor in hot Florida weather and it is freezing cold up there. I know modern birds maintain a higher body temperature than mammals because of this, from my understanding pterosaurs were better marathon flyers than any vertebrate, I would expect a low metabolism would not suffice for such animals but idk
You know maybe there was many species of small pterosaurus, but their bones were too fragile to fossilize...
But the real question is did a meteor/comet cause the The Younger Dryas?
The best explanation for the Younger Dryas is the disintegration of a comet as proposed by Clube and Napier in 1984. There are many evidences of the falling of those fragments in successive passages: Abu Hureyra, Gobekli Teppe, Cape York and Willamette meteorites... There are a lot of metallic fragments in bison and mamooth bones dated from 30,000 years ago, before YD, found in Alaska and Siberia - and hundreds of suspicious elliptic lakes around Cheliabinsky, all of them oriented towards the region where the Alaskan bones were found.
@nick sweeney you realize that's a new hypothesis right not full blown scientific theory but a hypothesis that's being investigated right now?
And the investigation has been ongoing and there is a BIT of evidence for it not enough to say beyond a reasonable doubt but I mean stuff like this is there www.google.com/url?sa=t&source=web&rct=j&url=www.sciencemag.org/news/2018/11/massive-crater-under-greenland-s-ice-points-climate-altering-impact-time-humans&ved=2ahUKEwjF1OCK_pPsAhUSd6wKHVvdD9AQFjAhegQIAxAB&usg=AOvVaw1d9XHH4Seyl_D5rojP74K_
@nick sweeney Random collisions is a better explanation than random mantle plumes. Impacts can explain the origin of mantle plumes. Impact craters are visible on Moon, remnants of craters are visible on Earth. You may believe in what you want, but I do research and I'm not afraid of new plausible theories.
@nick sweeney Don't you know the basics? Learn about, do your own research before defying others to explain it to you. Surely, I have nothing to learn from you, have a nice tantrum.
@nick sweeney No, I didn't feel a tantrum in your previous reply. I anticipated the tantrum in this reply, and I am not disappointed. And positively, I'm not embarrassed. Your arrogant manners do not deserve my time. If you didn't get it yet: I have no obligation to answer your questions; I have better things to do than talk to you. This conversation is over, your little display attempt is over. Bye bye!
Days like today, I wish a meteor would hit again, and make me ground zero
Im always been thinking of how rapid was the extinction event? Heres what wikipedia says!
The rapidity of the extinction is a controversial issue, because some theories about the extinction's causes imply a rapid extinction over a relatively short period (from a few years to a few thousand years) while others imply longer periods. The issue is difficult to resolve because of the Signor-Lipps effect; that is, the fossil record is so incomplete that most extinct species probably died out long after the most recent fossil that has been found. Scientists have also found very few continuous beds of fossil-bearing rock that cover a time range from several million years before the K-Pg extinction to a few million years after it. The sedimentation rate and thickness of K-Pg clay from three sites suggest rapid extinction, perhaps less than 10,000 years. At one site in the Denver Basin of Colorado, the 'fern spike' lasted about 1,000 years (no more than 71 thousand years); the earliest Cenozoic mammals appeared about 185,000 years (no more than 570,000 years) after the K-Pg boundary layer was deposited. In some remote locations such as New Zealand, dinosaurs may have survived for several million years after the impact.
This could be a topic for a video!!
It's such a shame that most of the people still refer to this as a... "theory".
There's a difference between Scientific Theory and your Ordinary theory doe. My big gripe is when most people don't know the difference between Theories and Laws. They think Laws are superior and has proof and consider Theories as guesses without proof.
@Antonio I appreciate your passion but I must correct you. The meteoric catastrophe that wiped out the non avian dinosaurs was a theory, long ago, based on scattered proof (few and not shaky)
But after discovering proof of the iridium from the impact all over the world and even *finding the actual crater*... Going against it it's just nonesensical ;)
@@marinomele4575 Absolutely correct.
Last time I was this early, the dinosaurs were still around.
They are still around. 🐥
Oh last time I was this early I was struggling to survive the younger dryas
bad joke cause they are still around
Ahh yes the K-Pg game update was a good one, I was tired of the dinosaur meta. The Paleogene expansion was much better.
Yes, when you see the kids play minecraft you get another perspektive on possibilities. "Today I turn on the rain!" :-)
not a word about the Decan traps?
Yeah, incomplete to a point where it's totally misleading
A misconception that a lot of people have about K-Pg is that mammals and birds were 'fine'. They almost certainly were not fine. Only a tiny fraction of bird species survived and many species of mammals went extinct. As for the populations of the survivors, they likely encountered 95-99% mortality rates in the months and years after the impact. The difference between our ancestors making it and a lot of other species dying off probably comes down to a few dozen (or less) breeding pairs worldwide. When numbers get that low the individual becomes critically important, which means that random luck does too.
I have some doubts about the amount of biomass loss you give here. Looks like a guesstimate to me, as even the way worse Permian extinction didn't give a 99% loss rate
They were certainly not fine but I don’t think their mortality rate was that high. The advantage that mammals and birds had has their size. Although having a high metabolism their size made them survive with far fewer calories than non-avian dinosaurs or pterosaurs.
well. there’s craters, and bones.... METEOR KILLED DINOS
Future intelligent life here will view homo sapiens an index fossil bc we're plentiful but also only occur in very small time range
It's actually a weird yet incredibly fascinating thing to speculate on how future civilizations could view the sheer abundance of our and our lifestock's bones in the future.
The variety of life-changing events on this planet that drove evolution in it's direction, gives us a clue as to why we probably won't pull up on another planet and be greeted by anything that looks even close to human. But there WILL be other life to be found. The odds are in it's favour! 🙄😎
Very interesting and well told! Thank you! Are you going to do one about the permian-triassic extinction?
So being able to fly often requires being semi-arboreal (this is why flying dinosaurs that aren't birds may have died out in landscapes lacking trees). We also know the most basal groups amongst birds are all flightless. Our hypotheses are currently changing to address this fact, but it is now believed that the birds that survived the extinction event actually could not fly. They are believed to have survived due to a combination of not flying, being fully endothermic rather than between endo and ectothermic like other dinosaurs, a smaller size, and the development of beaks rather than jaws and teeth.
It is theorized that the meteor wasn't enough to cause the mass extinction. Eruptions that caused flood basalt probably contributed (if not being the main cause), namely, the Deccan traps in India.
Imagine majority of light coming from the forests burning