The Last Woolly Mammoths Were Wiped Out by a ‘Mystery Event’ | 7 Days of Science
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- เผยแพร่เมื่อ 2 ก.ค. 2024
- In this week's round up of the science news, we take a look at the revised Drake Equation as scientists try to answer the question of why we haven't found any aliens, a new species of Stegosaurus is discovered, and we zoom in on a famous extinct creature that only recently disappeared from our planet...
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Sources:
Revised Drake Equation:
www.nature.com/articles/s4159...
Arctic fuel ban:
www.bbc.co.uk/news/articles/c...
www.ccacoalition.org/short-li...
3D anatomy of trilobites preserved:
www.science.org/doi/10.1126/s...
www.sci.news/paleontology/cam...
The extinction of the last mammoths:
www.cell.com/cell/fulltext/S0...
www.sci.news/paleontology/wra...
New stegosaur species:
www.nature.com/articles/s4159...
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Those scans of the trilobites were fascinating.
Ancient Pompeii!
Poor mammoths. Bring them back please, Ben.
Yes ..imagine BBQ a mammoth T bone steak,one could feed a village
Elephants, we have those. Take what you can
@@reeyees50 Elephant steak is not so tender and contain trichinosis i rather bbq seal and hvales . Greetings from greenland
I really think it would take a mammoth effort...
@@reeyees50 we van use the Asian ones to surrogate pregancy some baby mammoth clones. It'll be cool.
YESSSSS trilobites!!!!
Trilobites make my day.
Has anyone noticed that the wooden dinosaur skeleton in the background has its elbows pointing the wrong way?
not just the elbows; the hands, too. methinks the arms are just on the wrong sides
He probably put the arms on backwards because the the hands are pointing in an impossible angle. He had the choice between either the elbows being backwards or the hands being backwards.
Good catch, yep gota swap sides.
Incredible, those newly found trilobites. I want to know everything about them!
I wonder if that random event involved a bipedal primate super predator discovering some giant steaks.
The mammoths were already extinct before humans first arrived there
@@ArifRWinandar Wouldn't necessarily be archaeologically visible if it was for a short period.
@@ArifRWinandar Works cited: crack pipe
a pack of sabertooth tigers could have also done the trick.
@@marcpaulus6291 they were already long extinct (also by humans)
Keep in mind that woolly mammoths-the most cold adapted proboscideans to have ever existed-survived no less than 5 other interglacials, including the Eemian when what is now London was warm enough to be home to hippopotamus. They still outlived temperate/subtropical adapted Columbian and Channel Island dwarf mammoths that should’ve thrived in the warmer climate of the Holocene by thousands of years and were still around by the time the pyramids were being built, this being in refugia areas on Wrangel Island, Siberia’s Taymyr Peninsula, and the Yukon. We indubitably were the major factor in their extinction.
Were they edible?
There's the answer. If we can eat it, we will hunt it.
I imagine the island group Ben spoke about died of a disease rather than climate/weather event. Bring isolated, it would move through them quickly.
Eh Mammoths also survived alongside humans for thousands of years and would’ve been extremely difficult to bring down with the weapons of the time. While it is true there were many interglacial periods that doesn’t mean that the last one that began the Holocene epoch wasn’t a particularly rough one. The idea that humans wiped out the mammoths on the mainland at least has way too many logistical and logical problems to be plausible once you put a little bit of thinking into it.
@@bennettfender9927The Eemian was a fair bit warmer than the Holocene and no, the Holocene is in no way special. The Saalian was actually colder than the Weichselian as well, making the Saalian-Eemian transition much more rough than the Weichselian-Holocene transition. There is an undeniable trend that wherever modern humans appeared, large mammals disappeared, and the degree of size selectivity of the extinctions is unprecedented since the KP-G event (the one that wiped out the non-avian dinosaurs). Straight-tusked elephants coexisted with moles and dormice in Europe, they had survived throughout multiple cold periods and they went extinct at a time when the Weichselian climate was neither particularly cold nor unstable, and at this point had already made it halfway through. We can argue about specific cases and the wolly mammoth is a particularly ambiguous one, but the bigger picture is that there is no way around humans as the causal actor. Your argument is resting, frankly, on a lack of imagination, while ours is informed by data and the irrefutable trends, and that's the difference.
@@gutemorcheln6134 Your argument relies on the logic that ancient humans had the technology and means to wipe out the large megafauna which is quite ridiculous media greatly over exaggerates the likely effectiveness of humans hunting megafauna the fact that the date of many humans arrival in places like North America has been revised to be quite a bit earlier than initially assumed only hurts arguments in favor of the overkill hypothesis. On top of that while the Holocene may not be as warm as other periods I wouldn’t be surprised if the rate of warmth might’ve been faster than during earlier periods. The overkill theory is quite frankly extremely flawed and has more holes than Sponge Bob SquarePants.
BEEN LOVING THE CHANNEL RECENTLY GUYS your always doing amazing! Have a wonderful day
....okay but that shirt is _fabulous._
Ben just keeps getting handsomer as the years go by. 💙
Wait, so you're telling me that my lifelong dream of the inklings from Splatoon being real is a possibility?!....
I always learn something new from your videos. They are a treasure trove of knowledge.
That rapid intro gives off Invincible vibes
Good job. Presentation skills upgraded!
Only thirteen twiches this time!
Trilobytes are ky favorite ancient animal. ❤
'mystery event' is definitely humans eating everything lol
There’s no evidence of humans reaching Wrangell Island before the mammoth extinction there.
I was hungry. Sue me...
@@torianholt2752 Lol sure. "Humans lived as early as 1700 B.C.E. in the region, at the end of the mammoth period"
@@chir0pter study your math please
Is this a Mandela effect or something cause I swear mammoths were already on a population decline prior to humans hunting them. Humans probably put the final nail in the coffin but they certainly weren't the main reason for their extinction.
Been watching your TH-cam channel since you were a kid hiding behind your hair. I love that you are still passionate about the subject and a TH-cam star.
On the Drake equation, I always thought it was very inadequate, and the update doesn’t help. The issue for me is we have an example of one to use as the basis of what conditions produce life. We know a lot about what won’t produce life but there are so many variables to consider.
Multiplying a bunch of factors that we don't know together isn't useful.
The equation is about setting bounds. We don't know exact values, but we can set bounds on those values, and thereby set bounds on the calculated probability--provided the theory underlying the formula is sensible.
@@collin4555 Okay, which of these do we know the bounds for?
There have been so many more recent discoveries about how Earth's conditions rely upon The Moon, the magnetosphere, as well as materials arriving from further away on asteroids and comets, as well as materials our solar system is travelling through, left over from a prior supernova, that the recipe for a sustainable planet hosting life has become far more complex than the original equation. It's a bit like developing meteorology: you start out by saying the weather changes based on the time of year due to The Sun's position in the sky, then you factor in wind activity, then you realise there are ocean currents involved, then you realise there are similar currents high up in the atmosphere, then you realise a volcano on the other side of the planet can affect your weather, then find out ionised particles are affecting the atmosphere, then... until you wind up with people creating nonlinear (Chaos) maths and Lorenz Attractors, to start to try to understand what's going on.
Looking at the planets we have proper data on, statistically 1 in 8 planets should have intelligent life.
But that is obviously incredibly insufficient data.
Ah, he said ship fuel, ship
well done, as always
Not content with its war on Doug, the intro is now out to get Ben. 😄
Love your channel. Thanks for educating me beyond what I learned in college getting a BS degree in Environmental Science.
I love 7DOS. That’s all.
Did the opening sequence just... interrupt Ben?!
....i read molly wammoths...
It's ok, some goirl somwhere named Molly Wammoth prubly watches ton's of wooly mammoth videos and doesn't mind being mentioned.
If they ever manage to make a viable clone or suitable hybrid, that's what we should call them.
great shirt Ben
Baiyinosaurus baojienses... Don't think you need to worry about the pronunciation too much, you've done a good job already Ben, it looks like a hybridised word crossing between Mandarin Chinese and Latin. When it gets an official Chinese name, the Chinese name will sound very different, then you might want to learn to pronounce it.
4000 years ago some Siberian hunters discovered a good food cache ?
The blush and lipstick is killing the vibe.
A viable magnetosphere should be a consideration for habitable life on a planet. Plate tectonics may provide this situation, but it should be mentioned. Our moon also provides some physical protection from bombardment by life destroying asteroids and meteorites, and because it was probably the source of water on Earth, I propose it be given a suitable name, like Tolba, Abenaki for "turtle", honoring a First Nation creation story. If there should be any takeaway from all this it's that life on Earth is quite spectacular and we should focus on preserving that miracle, before we try to colonize alien worlds.
"...absorbs heat and exacerbates warming." 🤔
Personally speaking, I feel like there are simpler explanations regarding why we haven't found anything outside of single-cell microbes elsewhere in space:
1. The universe is just that goddamn big.
2. Perhaps it might actually still be too early for any civilization to have obtained FTL or near FTL travel, and our probes exploring the universe are simply too far away or too small to have been noticed by anyone else.
Yeah. In so many works of fiction there is some ancient, super advanced, but extinct progenitor civilization.
What if we are that civilization? What if we are amongst the earliest to even try looking around.
And then there is obviously the idea that the universe is full, but everyone keeps quiet for some reason.
The problem is time.
Our sun is 4.6 Billion years old.
But the Universe is 13.7 Billion years old.
Meaning early civilizations could have BILLIONS of years head start to leave their mark on the universe. But we don't see it.
So far we haven’t even found singlecelled microbes. But we also haven’t looked that much so far.
more evidence we should bring back mammoths and make Wrangel Island a Jurassic Park style Pleistocene park
BEN!!! OMG YOU LOOK AMAZING!! that shirt is awesome. 😊❤
Simp! But yeah he do be looking fine.
A very old Eskimo friend of mine told me that his uncle 4 that's how he put it in killed the last of the mountain beast shortly before bad ice moved back to the North and thier family from back home could no longer visit because the ice was gone and the water was very fierce.
Interesting
Was the end of your intro a reference to One Piece, where Dr. Vegapunk's message cut off at "mo-" as well??
Hi, Doug.
Liking the fit Ben!
Hey, they cut off the bloke Ben! Good God Lads! Ben, it sounded like you said "Sh*t Fuel". I had to rewind that, then I heard, Ship fuel.
That shirt..
Cakey
Random event= 6 blokes in a boat every summer for 30 years.
They've been talking about a flash freeze event for decades now with the mammoth. The interesting thing to me is that the pygmy elephant species Palaeoloxodon tiliensis on tilos died out roughly around the same time. As well as ground slouths in the Caribbean in memory serves me right
Bruh, nobody seriously argues that the extinction of the Caribbean sloths wasn't caused by human settlement in the island, and how the fuck would "flash freezing" have a severe effect on the fucking tropics? Did you forgor those sloths survived LGM and YD just fine?
There was the 4.2kya event, which was probably a cooling/desertification episode that also lead to largescale turnover in human population genetics and civilizations. However, it was relatively mild compared to previous climatic changes, including during the Holocene. Also the Aegean pygmy elephant died out hundreds of years later. The common denominator is that people arrived in the Caribbean islands recently prior and a hard freeze in the Arctic could have allowed landlocked people to visit Wrangel island and kill everything off. Blaming it on climate is simply a cope, and requires very selective reading of prior climate change. Humans in every case were necessary and sufficient.
@@chir0pter you expect me to believe that stone age hunter gathers just strolled in and massacred them. Get out of here
@@morewi...yes? How many mammoths were on the island, and then think of a bunch of stone age tribesmen armed with dart throwers. You'd be surprised what a small group of guys with dart throwers can do against relatively large game.
@@N0sf3r4tuR1s3n except you are ignoring me whole hunter gather thing. They don't wipe out species.
Why would you need continents for life? That is a very terrestrial bias.
I’ve never understood why the absence of aliens is considered a paradox. If the earth is any indication, then simple life may be somewhat common, but we should expect complex multicellular life to be rare, and intelligent life to be exceptionally rare. That any two intelligent civilizations would exist at the same time and be close enough for any kind of contact is practically impossible.
I agree. And even if it was possible the chances we are both sending and receiving at just the right time like you said is so absurdly impossible that it trumps most other variables. Even a couple thousand years would be enough of a gap that we’d probably still miss each other
Because curious apes tent to explore. They will be looking for ways to do so, and to expand their living space. With the inevitable fast progress in technology, that means a whole galaxy is conquered in no time. Even if the apes don't care, AI will do it, just because it can. But we don't see that.
The drake equation doesn't consider if any of the variables are related to each other, it just multiplies a bunch of unknowns. This update doesn't help. ? * ? * ? = ? while ? * ? * ? * ? * ? * ? also = ?. It also doesn't consider the chance that life might just never evolve past the single cell stage. It took earth a very long time to do that.
Drake didn't intend for this to be the answer. He intended to simply start a conversation.
Why would it matter if the variables are related? The fraction of planets that go on to develop intelligent life from life at all takes into account multi-cellularity, unless you think intelligence single celled organism can exist.
I thought one of those variable was a probability that multi-cellular life was able to form? At any rate, what it doesn't consider is how long said civilizations last. If intelligent life can only exist for thousands of years before extincting itself, then ever if there COULD be billions of intelligent lifeforms, across billions of years, they will never meet each other.
Put that Mammoth on a grill, get me some of that Mammoth meatball
Even though humans coexisted with and may have contributed to the disappearance of mammoths during the Late Pleistocene, there is currently no evidence that this was the case for mammoths on Wrangel Island. The earliest human occurrence on Wrangel Island has been dated to ∼3,600 cal y BP,56
almost four centuries after the disappearance of the mammoths on the island.17
We therefore hypothesize that some other form of sudden event, such as a disease outbreak or dramatic change in environment, possibly in combination with the population’s reduced adaptive potential, may have caused the demise of the Wrangel Island mammoths. However, based on our data, we cannot rule out the possibility of a tipping point in accumulated moderate impact mutations, which, over a time span of less than ten generations, led to a non-viable population.
You can't date wild animal extinction in deep time that precisely, nor can you conclusively say when humans got there. For a long time we thought Clovis was the earliest that humans got to North America.
A small population is always subject to inbreeding. That's why we may never be able to clone them back from a few dozen specimens.
That wooden raptor skeleton behind you has its arms on backwards and it is extremely distracting, lol.
Maybe it's doing The Chicken Dance.
Look at those rosy cheeks!! 😊
He’s a lush..?
Looks like an "excited" anime girl lol.
It's a genetic trait common in his ethnic group.
@@b.a.erlebacher1139so are aunts with pinchy fingers.
For a second I thought that picture in the thumbnail was Ai
I highly recommend the video
What Astrophysicists Think About Aliens
by Dr. Fatima
Talks about some really good thoughts about the fermi paradox
Climate chage from all that pollution 🤣
ya been traveling in the snow trying to find them mammoths my boy?
Just curious, thoughts on Andrew Tate?
bro didnt know that the last mammoth didnt died into some "mystery event" Nigel marvin just travelled back in time and put it in his park
The Soviets would probably have set a mammoth quota and wiped them out anyway. They did the same with the whales.
Common Soviet L
Humans. The answer is humans. Nothing else explains mass pits of mammoth bones.
Floods. Wildfires driving them off cliffs or into a singular zone. Debris floes. Prions.
I even agree with you, but watch out for confirming your bias in the future, friend. :)
@@DS-ej7zt Either you’re trolling or you really think Ice Age was a real thing. Delusional!
@@thesunflowchannel1995 "I even agree with you" gotta brush up on reading comprehension?
Drake equation? "THEIR HEEEERE!"👽👽
I think there's a movie about this
it's because aliens have observed us and said "Nope"
Al Gore told us the polar ice caps would be gone by 2020. He said this in the 90s.
Good thing we had the Kyoto Protocol, Paris Agreement, G20, etc. Of course more improvement could have been made, but it's not like the world has been doing nothing about greenhouse gases since the 90s.
I'm still waiting for the Comin' Ice Age.
Me too.
Thats the ice age age Mammoth right? Also u got cut off in the intro
Yay the cute cheeks ❤
I'm so glad you're able to give us this science news despite suffering from acute carbon monoxide poisoning
You don’t know any English people, do you?
I'll bet the event that finished off the mammoths was humans reaching the island.
The mammoths started vaping...
Bunker oil is what we called it in the Navy. Does every video have to have climate crisis section now?
Caveman ripped ass
I just learned how to edit videos and even I can do
Canada and Russia in particular- not to mention china- have a lot to gain from an ice free arctic.
I don't think there's much we can do to keep that eventuality away.
We should be planning to deal with the consequences of our actions rather than trying to alter the past-
When we might have had a chance.
Some call them Mammoths, others know them as the Nephilim😉
How can someone dumb as me come up with the conclusion that the Drake equation is way out dated and missing several factors. I realized years ago that plate tectonics might be a key variable. I think having a large moon is another important part of having complex life as well.
The mystery event is definitely aliens 😂
Who 'banned' the bunker fuel? Arctic includes international waters
Those damned egghead scientists and their crazy woke evidence and equations strike again!
a big moon at the start of the 'life' of a planet is a biggie when it comes to a planet hosting complicated life...provides stability and consistency.
A big Jovian-type in the system is another,,,having water as a solvent is another. The list is endless, and our earth ticks all the boxes. Anthropomorphic, perhaps, but it's undeniable that earth is one hell of a lucky shot.
Incalculable odds got us humans to where we are.
Boost your exposure a bit, it will smooth skin tone
And mo-- lol
6:04
Yeah, it’s called “humans showing up and killing them all.”
brandon did it to them he'll do it to you
Poor Woolies! I heard they had an odd mutation of the coat that made them "shiny" that affected their insulation. Sadly, as bloodthirsty as humans are, the critters wouldnt have made it, i dont think....
Mystery event called my spear and a time machine
Ben, how do paleontologist feel with the ever increasing difficulty in pronunciations of modern named fossils? Have there been major flack about this from university newer generations? I can imagine remembering them accurately is becoming a nightmare. Even worst spelling them.
Awesome trilobite news! Bet I can guess what happened to those mammoths. Could it be..... humans? Those darned critters are so very very good at wiping entire species out of existence.
My take on the Drake Equation is that basically all steps are variables with unknown values.
We don't have anything to compare to.
Okay we do, but by that statistic 1 in 8 planets should have intelligent life. We simply don't have enough data to make a proper calculation.
My first thought about the "mystery event" is humans.
We are really good at causing extinction because whatever goes extinct is edible.
Does life from Venus via panspermia count as alien life?✌️❤️🇬🇧
Hahaha, remember when they were going to soot the poles to prevent the coming ice age?
I do.
I mean, I suspect the mammoths probably would have been wiped out by some human nation before they could have survived to the modern day.
How dare you! Humanphobe!
How is there any question about where the mammoths went. Haven't we all seen the documentaries Ice Age and Ice Age: The Meltdown?
Sigh. All these equations and paradoxes never seem to take into account just how vastly huge space is and how old what we can detect is... Maybe there's been lots of alien life and civilizations out there - but maybe they all died out millions of years ago. Or maybe they're still there, but too primitive to have developed any signals we could detect. Or any number of other very likely (compared to the probability of an eternal civilization that has mastered interstellar travel, which is what so many people seem to assume must be there) scenarios that would make us miss them completely.
edit: Oh, and that "random event" that killed off the Wrangel Island mammoths? Humans showed, just like always.
They very much do take that into account. Have you not even taken a cursory look into them?
I bet that "random event" that wiped out the last Woolly Mammoths has something to do with Humans.
The abundant comments here, proclaiming confidently that the “mystery event” that finished off the Wrangel mammoths MUST have been human predation (as if that possibility would •never• have occurred to the researchers who did the “Cell” study), show that this video’s creators should have forestalled all those rushes to the wrong judgment, by including here a comment that researchers have determined that humans had no direct involvement in the extirpation of the last mammoths from Wrangel Island.
As the New York Times put it, in its coverage of the “Cell” article, there’s simply no evidence that humans are to blame, here. The •earliest• known human visitors to Wrangel Island appear to have set up a summer hunting camp 400 years •after• the mammoths died out on the island.
Instead, the authors of the study state,
“We . . . hypothesize that some other form of sudden event, such as a disease outbreak or dramatic change in environment, possibly in combination with the population’s reduced adaptive potential, may have caused the demise of the Wrangel Island mammoths.”
6:02 random event...? Humans most likely.
Sooner or later people are going to have to face the fact that the continents broke apart in the days of Peleg, 100 years after the global flood. The asteroid hitting the Yucatán Peninsula could have been a major contributing factor.
* It’s the reason for the glacial striations stamped on top of bedrock like a gigantic broken seal in South America, Africa, India and Australia from glaciers that were moving from south to north from the time when they were all still connected to Antarctica at the South Pole. Of course this was after the sediment layers from the global flood were deposited.
* It’s the reason fossils and sediment layers line up between South America, Africa, Madagascar, India and Australia. (The fossils and sediment layers were deposited first and then the continents broke apart, 100 years after the global flood.)
* It’s also the reason there are many frozen animals and forest ecosystems buried by tsunamis from the rise of sea levels in North America and Siberia as the continents were being shoved into the Arctic from the centrifugal force after the earth broke apart, possibly due to hardening of the sediments and other factors.
* It’s the reason animals made it to South America from Africa and humans did not since they were still trying to build the Tower of Babel before the breakup of the continents. Jaguars were separated from leopards, greater grisons were separated from African honey badgers, tapirs were separated from …tapirs, otters were separated from otters and all of the other animals arrived at various places around the world before the breakup of the continents.
* It’s the reason why the lifespan of humans was cut in half a second time since the global flood from a less than 500 year lifespan to a less than 250 year lifespan.
* It’s the reason why the meaning of the word Peleg in Hebrew that meant “divided” turned into “as (where) the waters flow” in the later Aramaic form of Hebrew. That’s quite an impressive change in meaning.
* It’s the reason people isolated into family groups and began speaking their own language. (Everything that happens is of course by the power of God.)
*Last but not least, it’s the reason penguins never made it to the Arctic since there was no land there for them to breed in the Arctic. …And now you know the rest of the story, the whole story.
Hopefully the Drake Equation is able to find answers on why we haven't found intelligent life not like us.
Every time I hear climate change concerns all I can imagine is the Man Bear Pig Algore episode from South Park.
Aliens advanced enough to meet us are too smart to want to.
Younger dryas. Gotta love that scientists don’t communicate and argue fact for years then when it’s near undeniable, they say look what we have discovered. It’s sad and see through
Except the extinction of the woolly mammoths in Wrangel happened around 7,000 years after the onset of the Younger Dryas and, for the record, it's very likely some mainland populations survived well after the begging of the Holocene.
except the mammoths went extinct nearly 4,000 years ago, well into the bronze age
That's some nice fan fiction you've made about science, but that isn't how it works.