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- เผยแพร่เมื่อ 1 ก.ย. 2022
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New research suggests climate change in the past might have helped dinosaurs spread across the world. And modern climate change is revealing some of the things they left behind.
Hosted by: Hank Green
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Sources:
www.usgs.gov/faqs/what-was-pa...
www.britannica.com/science/Pe...
www.nature.com/articles/s4158...
www.npr.org/2022/08/25/111933...
www.sciencealert.com/dinosaur...
tpwd.texas.gov/state-parks/di...
www.nature.com/articles/s4146...
www.nbcdfw.com/news/national-...
Images:
www.gettyimages.com/detail/il...
www.eurekalert.org/multimedia...
www.eurekalert.org/multimedia...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
www.gettyimages.com/detail/il...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
www.gettyimages.com/detail/il...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
www.gettyimages.com/detail/ph...
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We Curious People need to help each others,
but Recommendations arent really a Thing i see causually done.
So here, why not check out Hbomberguy, UpisnotJump, OCC, Some More News, Climate-Town and Second-Thought
for the best of the Best?
Weeks start on Monday, Hank.
@@TheInselaffen Says who?
1:32 Awesome! so this means we probably have many more early Triassic fossils to uncover in Antarctica, some day way in the future?
It's amazing to think that footprints can either exist for just a few minutes, or last for thousands upon millions of years...
Or it's a joke by archeologists to do us think that way :D
@@user28sdfg8 conspiracy bros
I always wanted to be a Tyrannosaurus Rex when I grew up as I heard they can grow anything up to 20 feet, but all the ones i've seen so far only have two.
Lol😀
*CHICKEN*
I always found it oddly poetic that the Earth's most famous giants probably wouldn't have existed if not for the Great Dying.
From the ashes of that catastrophe, we get some of the clearest evidence of how adaptable life is, even in face of almost complete desolation.
No, no , no. The big bunny in the sky made the earth in 6 days, had a bong on the 7th and sent the easter bunny his son to remind us existence is only 5000 years. Any other so called discovery is just a test of faith and if you fail you're going to hell for all eternity - praise the big bunny (or I'll threaten to use a thermonuclear device to force you to).
The same with us, we couldn’t exist without the end Cretaceous mass extinction to free up ecological space for mammals to come to dominance, you can’t get new growth without clearing away the old
@@ThePaulv12 praise the sky daddy
That's why when I hear people say stuff like "save the planet" I roll my eyes. The planet will be fine, actually better without us. New life will sprout and grow and evolve as it does every single time a catastrophe occurs. That's not a reason for us not to care about our current biosphere, of course, but the planet itself will endure.
I can never wrap my head around how many millions of years of animals walked under my house, but that my patch of this planet was in a different gps coordinate. I just seems like this was an alien planet, and not where I park my car everyday.
These broadcasts always focus on the animals and forget about the plants. I'd like it if they could include the flora and how their range affected the animals.
Triceratops which likely fed on cycads and cycadeoids. Sauropods which subsisted on the towering conifers. Hyperodapedon which probably grazed on Dicrodium (seed fern).
The Permian interval is characterized by a changing climate from a humid to dry and from lower to higher oxygen atmosphere. This may have helped the incoming gymnosperm (cycads, conifers) displace the ruling glossopteris.
Synapsids overthrow the withering regime of amphibians which likely were feeling density pressures as the incoming seed ferns were gradually displacing the more archaic fern allies.
As a world building fanatic, it's often the overlooked details like that which give life to the environment and explain the overarching features that draw everyone's focus.
Didn't realize it until now, but paleontology is kind of like piecing together an ancient book, trying to understand how the world of that story worked.
plants arent forgotten but dont fossilized as much. you can only say smth if you have actual evidence.
Check out PBS Eons.
I want to know more about the bugs of the dinosaur ages. There was the Era of (no-thanks-you-must-be-kidding) Giant Bugs, but… what about Triassic bugs? Jurassic, Cretaceous? Post-meteorite at 66MYA? Can we hear more about those bugs? Please? What did they eat? Who ate them? Did they transmit diseases? Were there dinosaur pandemics!? Epidemics? When did mammal-chomping fleas and ticks show up? How about lice? Beetles?? I have questions
And entirely too many spiders in my room
@@sudazima I'd like a fact check on that. I am not a geologist or palentologist, but if you had asked me to guess i would have said 1000 plant fossils for every vertibrate fossil. Even if you count animals with shells I would have expected plants to win.
I think I saw where I live on that Pangaea map. Hank, could you zoom into that with Paleo-StreetView?
I wonder if they could estimate the weight of the dinosaurs based on how far in the footprints sink
Interesting idea, I believe it would take a lot of speculation toward the exact conditions in which the footprints happened.
but we don't know how much of the footprint worn out right?
yes this is done, but usually not that neccesary since we can already very accurately guess their weight simply based on their fossil bones.
It would also require knowing the properties of the ground, which sounds really hard.
Think of basic mud. As it dries, it gets harder, and footprints will get shallower, but there would be no way to determine how wet it was at the time as the composition wouldn't change.
@@sudazima how do you know it's accurate? There's such variation on muscle type and density, amount of fat stored on the body and not every single animal has the same type of organs.
It's so nice to here the term hypothesis being used instead of the incorrect "theory" everyone enjoys using. Words matter!
yet you wrote "here" instead of "hear" ... words matter
@@vasectomyfail442 ys bt speling duzn't cuz u can stiiil undeRsTand the Seamantiks
@@vasectomyfail442 Irony to a degree, but incorrect usage of "here" in place of "hear" is harmless, incorrect usage of "theory" gets a bunch of cutlist morons with 13 braincells shared between them to dunning krueger their way to the bank.
5:20 I LOVE this arti rendition.
They look like they're doing something "human", like dancing and embarassing the kids XD
5:12 Foreground: "AAAAAAAHHHH"
Background: "Pull my feathers!" "I can't!"
I've watched since near the beginning for you guys. Thank you very very much for helping to keep the spark of learning alive in my heart, I just started college after nearly ten years of being away from school. That being said I want to be a chemist. Thank you guys! 😊
Congrats Madisen! I took a 9 year break and went back, and now I’m a lawyer. You can do it!
Same as you from Hong Kong! This channel always motivates me to learn more and deeper. I started college just 1 year ago, after 8 years of being away from school. I want to become an engineer. Hope you have a great journey!
the timescale is incredible.. the start and end of human life would be a blink of an eye
Probably a very silly question but I take it when all continents were just one, you could "walk" from far north to far south? I can't even imagine how the world must have been like during that time. I guess the continents are bound to collide again and history repeat itself(with or without humans)?
Absolutely correct! There are tones of cool videos if you just look up “history of the supercontinents” because we have had multiple iterations
Word?
They don't teach this in Jr high anymore? Plate tectonics? There's a whole bill nye episode on it.
In a sense you could still do that today, at least during the winter though a hundred years ago you could do it year round. Of course you would need to walk over the Arctic which is a treacherous place to cross with effectively no resources thus why no people animals or plants have ever done it, and you couldn’t reach Australia or Antarctica doing that, but in theory at least most humans can reach most other humans on foot without the use of ships or planes.
@@LuchadorMasque the American school system is broken in the uk we still get taught tectonic plates
1:40 "to get to the other side"
ah, just like their descendants today
Thanks for hours of endless free entertainment guys, you do good with these videos!
We Curious People need to help each others, but Recommendations arent really a Thing i see causually done. So here, why not check out Hbomberguy, UpisNotJump, OCC, Some More News, Climate-Town and Second-Thoughtfor the best of the Best?
As someone who used to live near Dinosaur Valley State Park and has visited a few times, I never would expect SciShow to talk about it. (I guess I assumed nothing new would be discovered there).
Moved across the country years ago and now I really want to go back and visit again.
I love the subtle “why did the chicken cross the road?” homage. 😂
Ufff, too big brain
Eons did a whole video on the pluvial period I believe, called something like "when it rained for millions of years".
two million! nodnod
Holy crap that reveal of the tracks blew my mind!
Make a calendar about parasites and I'll be a fan for life!
Been to that park in Texas many times as a kid. Was about 45 minutes ish from my grandparents house
I think the most amazing part of the vodeo is Hank's optimism that the droughts will end.
That is strange. Nowadays two legged animals need less water than four legged animals. Wasn't that the case 250 million years ago?
We went camping at dinosaur valley state park last week, it was SO cool to see in person.
Saturday September 3rd 2022
WOW this is such a great video ! I love information on dinosaurs 🦖 🦕 !
Thank you for sharing ! ❤️❤️❤️👍👍👍😊😊😊
That was beautiful! Thank you Hank!
Can you guys make a video on ancient trees or maybe weed
RIP grandma, she loved giving gifts of "A years supply of calendars" every holiday
Wow amazing topic!😃
Pangaea has always made me wonder what the Other continents looked like and if the species were completely different. After all there is nothing left of those continents today and we obviously have no fossils to look at..
The "Journey to the Microcosmos" calendar must be gorgeous.
Hank you are awesome!!!
> Enough with the kittens in basket
Do you want to start a war there, pal?
Thank you from Cambodia.
Can you do a video on the Bronze Age Collapse and the role climate change (likely) had with it?
Super cool
Microscopic organism calendar???? SIGN ME UP!!!
It was not just the desert. It was hot. Much hotter than any desert today. They physically could not survive the crossing.
Enough with the kittens in baskets! ... I couldn't agree more! Give me macroscopic microscopic beings!
good stuff
When SciShow makes more videos then PBS Eons, lol
Awww ... I love Kittens in Baskets ... ;)
I'd never thought about the dispersal of dinosaurs before.
Where did the rain come from?
Did the location of the trail create the river bed in the first place?
Thank you 🙏
I’m just trying
They all speak to me... All of them
Except the Pi one... U can keep that :D
We Curious People need to help each others, but Recommendations arent really a Thing i see causually done. So here, why not check out Hbomberguy, UpisNotJump, OCC, Some More News, Climate-Town and Second-Thoughtfor the best of the Best?
How does mud turn into stone? And that fast enough so that rain doesn't wash away the mud?
5:20 What are the dinosaurs in middle doing? 😳
How easily the tracks wash away doesn't depend on the animals weight but the mud's viscosity. So a human would just not made a track at all.
Everybody gangsta' until the birds make a comeback due to climate change:
Niiiiice shirt 😁
How many dino fossils are in Antarctica?
does wind turbines slow wind thus even less rain, more drought?
Birds today: So you're saying there's a chance
We Curious People need to help each others, but Recommendations arent really a Thing i see causually done. So here, why not check out Hbomberguy, UpisNotJump, OCC, Some More News, Climate-Town and Second-Thoughtfor the best of the Best?
Si un día se logra recrear la sangre de dinosaurios, no me extrañaría ver coincidencias con aves y mamíferos en varias cosas, yo creo que sus glóbulos rojos tenían núcleo como las aves y otros tipos desconocidos de glóbulos rojos y blancos, sugerencia.
Lol you can’t recreate blood. DNA is the one that truly matters if you want a species to live again
Nice, here right after uploaded! Love SciShow
What's the proverb from 'they struck the proverbial gold'? 🤭
Wait…. What have I missed? The dinosaurs have taken over?!!!!
i don't think anyone called it pangea back then
Well, at least something interesting came out of the drought o_o
You may want to clarify the climate change definition in your description. Your video is about climate change helping dinosaurs but how if humans caused climate change by burning fossil fuels. LOL :P
Now make the sequel, how dinosaurs helped climate change take over.
Do we have high confidence that the drought will end?
And they’ll do it again, damn it.
why was the photo of that fossil dug up AFTER the plaster field jacket instead of before?? that's not interesting! I wanna see the actual fossil, dangit!
Engagement engagement engagement
Drought? Ends?
I like you optimistic description of the climate adjustment.
Droughts don't last 30 years.
I was reliving the 2010's by opening my Kiva portfolio and noticed that Nerdfighteria was still one of the top active groups. Are there still Nerdfighters out there?
I'm glad it was Hank doing this one, because I really wanted to learn why.
I would like to say that climate change pretty much drives all evolution.
Engagement
Nice
Why where animals so much bigger back then
We killed all the large animals. There used to be lots of large animals. The blue whale is the largest animal to have known to exist ever and it's only alive right now because we haven't killed them all.
Mostly because of the arms race between predator and prey. Some dinos got so big they had no natural predators.
Why did the chicken's great great great great great great great great great great great great... grandfather cross the road? Because of the Carnian Pluvial Event, of course!
nice
i don't know why they are emphasizing how 'cold' things were. it was still much warmer than today. Obviously 60 F is cold for an animal if you are out in it day and night but that's a far cry from subfreezing temps
Because it was once thought that dinosaurs took over because they were better-suited to the hot, arid Triassic conditions and thus outcompeted everything else. Turns out that dinosaurs were WORSE adapted for the hot, arid Triassic climate, and had to wait until things got cold during the End-Triassic Mass Extinction (which also killed off the animals that had been dominant during the Late Triassic).
@@bkjeong4302 that doesn’t really track. It was even warmer in the Jurassic when dinosaurs became dominant. Dinosaurs were not dominant in the Triassic so I don’t know why anybody would get the idea that that’s when they “took over” 😄
@@chir0pter Except people did (and still do) think they were dominant in the Triassic, despite the fact they weren't.
The Jurassic was still not as hot as the Triassic, and there was a volcanic winter caused by the End-Triassic Mass Extinction in between.
@@bkjeong4302 You are quite correct the end-Triassic extinction was mediated by snap ice ages and other disruptions volcanic sulfur emissions cause. However the temperature declined for millions of years into the end of the Triassic before rebounding in the Jurassic to levels higher than in the later Triassic. I think looking at atmospheric oxygen levels is as interesting- dinosaurs had very efficient respiration, and atmospheric oxygen declined steeply across the P-T boundary, rebounded *edit* : slightly throughout the Triassic, before steeply declining to even lower levels in latest Triassic & stayed low through the early Jurassic when the dinosaurs fluorished.
Anyway my point is the "cold" they keep talking about is relative to some of the warmer temperatures of the past 300 million years, and still warmer and more equable pole-to-pole than today's interglacial let alone when we soon slide into another ice age (if global warming doesn't stop that)
When the drought ends… 🙄
justlikehumansbutwithoutfire
🤘
huh, thought they just gave out calendar's for advertisements, didn't think people actually used them still lol
Hello
Cool
Yes! Enough of the cats and baskets let’s get some real interesting stuff.. 👍
Boy those humans back then must have been really careless with the environment.
Okay skin bag but did you ever think about how that jacket is too cool for you
Guess then they'll be making a comeback....
this is a dino footprint comment
Well at least we get them back now. 😜
Hi guys!!!! I’m proud to be a member of the “watching this video within minutes of being posted” group.
you want a cookie buttercup ??
@@prdamico yeah, pass it around duderino!
Please!
Maybe retitle to “ancient climate change”?
These calendars seem really cool but there’s no reason to knock kittens in baskets
so a hot earth allows for mass bio diversity, got it, lets burn some oil
Dinos probably most likely had ears and other things hanging off their heads..
People have known about those tracks for years. Nobody discovered anything, they are in Dinosaur Valley State Park in Glen Rose, named so because of all the dinosaur tracks. "Discovered" is being overused way to much for clicks and views lately
I read the title as how climate change is helping dinosaurs take over. If only that were the case, sigh.
Spying on a dino's social life a few million years after the fact, here's hoping it wasn't an introverrt.
Please do a video on how earth's tempature changed way more dramatically and way faster way before people inhabited it.
My understanding is that the past temperature changes were much slower than currently.
@@JaniceLHz every chart I've see shows a similar pattern over thousands of years excluding the extremely rapid changes we think were
cataclysmic
@@fgjjfddc Confirmation bias.
@@fgjjfddc If you could provide at least one source, that would be terrific, as my recollection is the opposite of that.
Okay I will just wait until tomorrow morning and I’ll be home by the end of the night 🥹☺️😉