The Bear That Was As Large As The Allosaurus
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- Опубліковано 3 чер 2024
- Through old studies and numerous paleo media depictions, the Andrewsarchus has gained a reputation of being the undisputed largest mammalian land predator and carnivore ever. However, this is almost 100% not the case, as another lesser known mammal has a much more solid claim to the throne, Arctotherium sometimes known as the giant short faced bear
0:00 Intro
1:04 Discovery & Naming
1:46 Classification
2:23 Size of its Largest Relative & Andrewsarchus
3:00 The Five Known Species
3:38 Average Size
4:37 Largest Specimen
5:45 Largest Land Predator Since The Dinosaurs?
6:13 Height Standing Upright
6:38 How Did It Got So Big?
7:13 What It Hunted
7:45 Killing Technique
8:03 Speed
8:24 Sense of Smell
8:45 Omnivorous Diet
9:03 Competiting Predators
9:25 Range, Habitat & Burrows
10:37 Fights With Other Short-Faced Bears
11:10 Extinction Of The Giant Bear
11:51 Survived By Four Smaller Arctotheirum
12:19 The Survivors That Went 'Vegan'?
13:38 The Survivors That Remained Meat Lovers
15:11 Final Extinction
Artwork in thumbnail by Velizar Simeonovski
"Ancient Mystery Waltz (Vivace)" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
creativecommons.org/licenses/b...
Copyright Disclaimer under Section 107 of the copyright act 1976, allowance is made for fair use for purposes such as criticism, comment, news reporting, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favour of fair use.
We all know that EDP is the biggest mammalian land predator ever
lmao
holy shit lmao
That's pretty funny
Edp?😅
😂😂😂😂😂
For me, is a miracle that the human beings survived all of these big predators and the Ice Age.
We were the greatest predators.
Not for me, look at what we've built since then. An F-16 is a far greater achievement then overcoming any prehistoric predator. Humans are just built different.
@johnsoutherland3403 who would win: the greatest predators the world knew at the time vs skinny hairless ape with pointy stick?
@@AgxntOrange the reason all those predators are gone is because the upright walking mammals with the pointy sticks.
simple spears can kill any mammal.
Don't let Joe Rogan see this 💀
Too late
😂
Oh noooo
Jamie is about to work overtime
Rip Roe Jogan 🪦
Imagine how tough it would have been for modern-day large livestock guardian and big game hunting dog breeds if they existed back in the Pliestocene with these species?
They’d be extinct because of humans so it’s not possible.
They would have killed most of them in less than a century
Humans OP
@@kiuk_kiksYounger Dryas Impact. So no
@@kiuk_kiks humans didn't even discover fire or spears yet, so nah
11:58 I love how the human is just standing there completely unfazed like "well, fuck"
lol guy was like “guess I’ll die” ¯\_(ツ)_/¯
@@bignarwhale128 It was a woman.
Probs trying to remember if it was a “run away or stand your ground” bear.
@@gavinjones3933 it's probably a "say goodnight" one despite not being white lol
@@AndrewsMobs damn dude what’s her @
To put it into perspective, if Arctotherium stood on its hind legs, it could right hook a giraffe in the face.
Addendum: at the 2040 kilogram upper estimate, Arcotherium also outweighs a bull giraffe by a small margin, and outweighs a white rhino to boot.
And the giraffe would still kick it once and break half the bones in its body
Giraffes are terrifying animals
oh wow yeah that's some good perspective, thanks 0_0
@@kitchengun1175 a bear that big, probably only 1 bone per kick. Your point still stands of course tho. Girraffes can take a WALLOP to the head and sway their necks to absorb huge damage if needed, I doubt a right hook from anything would be enough to put a giraffe down, save a wrecking ball. Only way that bear is getting it's prey without taking way too much damage is if it tackles it's back from behind, which would probably break it's back with a 3,600 lb bear. If not, it could break the neck with a bite from the same angle. But head on? That bear is gonna die, either during the fight itself or from injuries afterwards.
@@troygillis6801My guardians have worked in African Game Lodges my entire life, and I've spent thousands of hours in them. I have seen giraffes, and have touched them, and have been licked by them. My living room has a giraffe skull from a bull who died of natural causes. I have some idea of what I'm talking about.
Giraffes can kick and do kick with astonishing force. They are megafauna in their own right and getting kicked by one is a death sentence. The impact force would easily decapitate a human - there are some anecdotes of them doing the same to the far more robust lioness.
The right hook would not kill a giraffe. They regularly slam their skulls into other giraffes in truly astonishing intra-species combat. It's horrifically brutal to witness in person.
However, giraffes are also hunted by lions, and there are prides who specialise in hunting giraffes. Some use truly ingenious tactics like running the giraffe into rocky, unstable terrain, and causing the giraffe to break its legs in the fissures.
I still choose Angustidens. Evicting giant ground sloths - who weigh twice that of a bull giraffe, rear nearly as high, and have knives for hands - is an exceptionally impressive feat. Giant ground sloths pummelled rock into caves. That is an impressive punch to survive.
Further, Angustidens has an equally impressive punch. They too had significant intra-species combat, and if it's anything like modern bears, it involves a lot of repeated punches to the head and torso from an animal which can lift hundreds of kilos with each arm. Angustidens isn't going to be killed by giraffe's kicks any sooner that it can kill a giraffe.
@@kitchengun1175As scary as they are, they're also quite skittish. They can run at 60km/h. Why kick you, when they can spot you're a mile away, and then kick the ground till you're a mile and a half away? A giraffe is no where near as scary to me on a game walk as a water buffalo, or an elephant, or - God forbid - a rhino.
I am autistic really appreciate when content makers make videos with just talking and no sound effects on interesting topics to me. Ty and wish you success and continuedness
you are not, you are just a leftist
@@charlymrivera7236what's the difference ?
lol cringe, stop trying to be edgy bro
Ya think autism is cringe my friend? Man, it ain’t fun
@@gigachad6885gay parents
4:56 - Extinct Giant Bear: *Could theoretically have been heavier than an Allosaurus*
Narrator: “Allosaurus has never seen such Bullsh*t before.”
Allosaurus wasn't the largest predator in its habitat, just the most plentiful
Allosaurus was a maximum of 2.7 tons with was definitely bigger than that bear
@@kinanshmahell8065yeah also I'm pretty sure the maximum for Barinasuchus is still slightly larger than the maximum for that Bear. I think he compared the maximum and even the somewhat lower revised maximum for Arctotherium to the lower estimates for Barinasuchus.
Hilarious totallyacat
@@robinsonray6766it could also be debetable : it may have preferred sedimentary beds as it's enviroment , meaning we have a bias in fossilization ...
Still allosaurus was a successful animal nontheless
Imagine the strength such massive bears possessed!
Nah, i'd win
@@gigachad6885🗿
😳
And the bad breath
@@gigachad6885 a One Paw Punch could Splatter Your Head like a Watermelon
3:03 I thought that was the bear’s actual size 💀
NAH 💀bro's gonna hunt sauropods
Mass Shifting special ability(like in the videogame 2015 Devastation)i guess...😅🫔💪🔥
Back to Elden Ring with you, Tarnished. Thy throne remains unclaimed.
@@TheLordHighNoob get out of my throne
same, it confused the hell out of me. imagine a bear that could stomp on an elephant
Truly a big prehistoric beast of Size
Good
Imagine being a giant ground sloth, but you're not even safe
Today I learned that South America used to have giant bears. Awesome!
Even dinosaurs were bigger down there before! What is up with that continent?!😮
@@righthandstep5 Yeah, South America is really weird! That's also where sloths, anteaters, and armadillos originated and the place with the most marsupials outside Australia. It's probably because, like Australia, they were geographically isolated from the rest of the world for most of their existence.
@@righthandstep5Also the biggest footballers are from South America.
@@MatthewTheWandererSouth America, Australia, and Antarctica were all connected at one time. Hence the reason SA and Australia, both have marsupials.
And once they separated, they were isolated for tens of millions of years. But SA lost over 90 percent of it's marsupials after the Great American Interchange.
A
@@DaviFigueiraChavez yeah they even have an alien from rosario. It’s insane
Arctotherium vs Barinasuchus... two titans. Imagine the fight
Barinasuchus was much bigger
Andrewsarchus Mongoliensis vs that bitch of Barinasuchus?
Jaguars attack and eat camians that are larger than themselves. So it’s possible that an Arctotherium could take on a Barinasuchus and beat it.
@@beastinfection638 wasn't arctotherium slightly heavier than barinasuchus?
@@juanramirez6251nah, pantanal jaguars weigh over 100 kg while their prey spectacled and yacare caimans are less than 50 kg max.
This is the video I wanted for long time. The biggest mammalian land predator ever. Please make another video about Megistotherium osteothlastes and Hyainailouros sulzeri
They were likely same animal.
@@yonghwanchoi4212 no. They're different one more recent thant the other.
@@ArtistJMAtelier Other Paleontologists believe Megistotherium is actually a junior synonym of Hyainailouros sulzeri, which is known by an almost complete skeleton, among other remains, and has been found in Europe, Asia and Namibia,and therefore comes from the same localities.
Names that just roll off the tongue.
I talked about the idea of a Cenozoic animated film that would include another carnivorous mammal besides Smilodon like how Disney's Dinosaur used a Carnotaurus instead of a Tyrannosaurus since predators form the Cenozoic get very little attention. since the only Cenozoic animated film we have is Ice Age I thought it could be a fun idea.
Me who played too much Elden Ring : "you mean to tell me Runebears were real at some point ??? 😱"
I was about to comment this but gosh you win
This comment put it into perspective for me 😂
Lol!
"they didn't have to worry about the great american interchange" is kind of a weird phrase considering bears were part of the GABI. Diversifying in Argentina and Chile is literally the interchange taking place
And the GABI was the whole reason Arctotherium exists in the first place.
JESUS! That's one big boy. Image seeing a bear standing on two legs surpassing an elephant in height.
Thank you God, for putting me in the time of Netflix and cheese burgers. And not the time of giant horse eating monster bears.
Amen
i laughed at this
And I thought the Northern Giant Short Faced was big , unreal. Really good episode 👍
I find it interesting how light bones and such dinosaurs had compared to how dense mammals are.
Something you think about as massive as a Allosaurus, 9 meters long and could easily pick you of a second story balcony being the same size as the Arctotherium.
Which is massive also of course but at a glance looks much smaller compared to the allosaurus
YEAH, EXTINCT ZOO
Love this channel
Yo, my comment is the second most popular
second ta myne@@Too_Average
Paleoburrows are a crazy concept. Like, imagine digging something that many thousand years ago, and it still exists
This video was put together so good! . My favorite one yet. The information was crazy and can't believe humans saw these bears alive. Would of been a scary sight for sure.
I love the way you put this together with great information and good illustrations. It gives one a good look at the way things evolved.
The change in environment is a theory that is expressed as to why all of the large carnivorous mammals went extinct such as the short face bear, smilodon, and dire wolves died out but smaller predators such as gray wolves and grizzlies survived. A belief on how when the likes of woolly mammoths and giant ground sloths disappeared, it made things harder for larger predators to survive as they required larger amounts of meat than gray wolves and grizzlies.
Yes, in North America anyway, most of the megafauna went extinct towards the end of the last Ice Age (20KYA). This included woolly camels, native horses, glyptodons, mastodons, mammoths, ground sloths, giant beavers. Roughly around the time that humans entered from Asia and started hunting them to extinction.
@@ChickensAndGardening that has been believed to be another contributing factor of why the likes of the short face bear disappeared towards the end of the last ice age.
Grizzlies ate bigger than most of that extinct list
Eso lo escuchaste en otro lado de seguro
Thanks. Educational and enjoyable.
@4:48 that big bear just wants a hug from that human! Aww so cute...
Yay! Very happy to open UA-cam and see this video 😊
I have always been fascinated by the Short Faced Bear. Your video shed new light onto this imposing Bear. 💪🏻🙏🏻✨
I really enjoy your videos. Im a former wildlife biologist, but ancient carnivores have always fascinated me. Pretty amazing.
This was a good, and informative video. Cheers extinct zoo.
I was waiting for a hours finally your are back I am crying with happiness 😭😭😭😄😁😄
amazing video dude, thanks
This is a very well annotated video great work
Would be interesting to see you do a video on Psilopterus, the last surviving Terror Bird.
And this, folks, is what we made the first plush toy after, as if plushification could tame the beast. But then it became a killer animatronic. We just couldn't shake it's killing nature!
Great video
Subscribed, great channel!
Finally a terrestrial land predator in Cenozoic other than the barianasuchas
To be fair, Arctodus wasn't actually a carnivore, it was an omnivore. Therefore it didn't face the same biomechanical constraints on size that obligate predators will face.
Yeah like a polar bear will die if it doesnt eat meat. I've seen a few untrue facts in this video and it pisses me off. I LOVE SCIENCE and i pay attention to all the little details like that and then I end up spending time trying to fact check that statement and others like it. I'm glad you commented on that because I know myself in that I don't have time to fact check that rn and sometimes I can down a rabbit hole in trying to do so
I think most bears are omnivores, really the Polar Bear is the only exception to the rule for its group, even Pandas are omnivores
Yeah but when it gets to that size the amount of calories it would need would probably make it a little struggle on herbivore side
Aren't people also saying that arctodus simus was actually bigger than Arctotherium angustidens
you put your all into this video and i LOVE IT
Thank you, sir, for this clear and well articulated article..!
11:27 around 800-700kya there was a general deterioration in climate and a relatively severe extinction event that wiped out our cannibalistic hypercarnivorous ancestor, *Homo antecessor*, as well as other species. Probably included a sudden and severe cold snap, with attendant drought at lower latitudes. Perhaps this was also the death knell for the hypercarnivorous giant Arctos. I don't know if I buy "the predator guild maturing".
The giant ground sloths like Megatherium are believed to be omnivores which occasionally feed on carcasses to supplement their nutrients. So the title of the largest land mammal that can eat meat would go to giant ground sloth.
Title says Predator and since we're talking Arctotherium they for the most part, were carnivores.
Bears are omnivores too
OUTSTANDING video!!!!
5:29 I loved hearing the word "thrice" again! We should bring it back!
" Nay , nay and thrice nay...!!
Where does the footage from 9:55 come from? I've been trying to find this episode for years.
İts from walking with giants
@@yetkinkaracal3346 Thank you. Much appreciated!
@@williamhenning4700 if you type "Walking with giants short faced bear" you can directly watch de episode👍
We've seen a spectacled bear during backpacking in the Puna de Atacama at 4,500 m altitude a decade ago. Awesome!
Did you chase it?
@@treybrannon4964 Nope, we just took a few shots
Amazing
Nice Video !!
Very interesting. TY.
What about the Hell Pig?
Imagine seeing one of those bears coming down the trail towards you.
better not... LOL
You better have a .500 nitrous express with you, or something of equal and similar power.
@@tatumergo3931 I think 20 millimeter high explosive would be more effective
@@noeyesmcgee810 . The only problem with that is the platform that you have to carry around for it. Like a recoiless Carl Gustav rifle.
Great video.
They’re called « Runebears ».
I knew Andrew Sarcus back in highschool. He was a good guy.
0:52 I love when they use practical effects for those shows 💯💪🏻
Nice vid
Will the descendants of today's extant mammals, birds, and reptiles ever reach these gigantic sizes one day?
Humans are trying. 🤣
@@SewingBoxDesigns By genetic cloning?
@@UnwantedGhost1-anz25 Nope. By upsizing at Wendy's.
OF course, but only after humans are gone. After every single extinction there was only small animals left, and when the climate became stable the survivors grew again. We just had the quaternary extinction, we live in a post apocalyptic earth full of simple small weak generalists
Yeah. XXXXXXL Pit-Bulls
12:21 absolutely gold image
The iconic short-faced bear (Arctodus simus), also known as the bulldog bear, is a species of bear that originally inhabited North America during the Pleistocene epoch from about 1.8 Mya until 11,000 years ago and was once extinct, but has since been brought back from extinction by what scientists are now duing to bring back the mammoth and has since been reintroduced to the modern forests, open woodlands, and grasslands of North and south America also including alaska and yellowstone to help boost biodiversity. It is one of the most common North American bears and among the most abundant in California. The short-faced bear is often considered to be one of the largest known terrestrial mammalian carnivores that has ever existed, although the Andrewsarchus is much larger. The short-faced bear can weigh about 900 kg (1 short ton) on average, however, the largest male being around 957 kg (2,110 lb) is not uncommon. When walking on all fours, a shiort-faced bear can stand about 5-6 feet (1.5-1.8 m) high at the shoulder, tall enough to look an adult human in the eye. When standing on its back legs, the male short-faced bear can stand up to 12 feet (3.66 m) tall. The short-faced bear is the most carnivorous of all living bears, being able to hunt animals as big as or bigger than itself, making the short-faced bear a brutish predator that overwhelms large mammals with its great physical strength. However, it usually feeds on pigs, peccaries, and other animals smaller than itself, as its limbs, despite being strong, are too gracile for such an attack strategy most of its time. Because its long legs enable it to run at speeds of 50-70 km/h (30-40 mph), it can also hunt by running down herbivores such as wild horses, saiga antelopes, and even prey such as baby mammoths. However, during pursuit of speedy game animals, the bear's sheer physical mass and plantigrade gait is a handicap; brown bears can run at the same speed but quickly tire and cannot keep up a chase for long. The short-faced bear's skeletons do not articulate in a way that would allow for quick turns - an ability required of any predator that survives by chasing down agile prey. It moves in a pacing motion like other living bears, making it built more for endurance than for great speed. The conservation status of the short-faced bear is Least Concern due to successful conservation efforts to bring the animal back and return the the short-faced bear's to there wide natural areas.
Can’t wait for more in the future
Runebears from Elden Ring make a lot more sense now.
Imagine how many pick-a-nick baskets they could've been stealing
And the people
Interesting comment about mammals versus dinosaurs.
I have to admit, I fit that bill before.
Only recently have I been talking to my kids about the now extinct mammals with some awe.
It’s an entire group I’ve overlooked.
Excellent
I'm tired of the technical requirement of saying non avian before dinosaur..
Andrewsarchus could be the biggest but there's also the possibility it was semiaquatic, like a carnivourous hippo. So technically not a land predator.
Eh, it’s skull is smaller than that of the related Daeodon, so I’m very sceptical as to the claims.
Now some undescribed Paraentelodon remains from Gansu, China sound interesting…
Wow, thats SCARY BIG! John P.
Very interesting. Seems like bears have had that title for a very long time. A very successful form for an omnivore to have (in the right environmental conditions).
He posted the video sometime in the afternoon but made it private
So? Can't wait a few hours??
@@aspectnato8077 no
The very highest mass estimates for Arctotherium angustidens are questionable for several reasons; they came from a limb element that had fractured then healed, leading to the bone being much greater in diameter (which is the relevant parameter for gauging weight in land mammals) than it should have been, and the equation used to calculate the mass of the animal was based on obese brown bears in captive setting rather than individuals with a healthy body weight, so that also led to an overestimate. A. angustidens was more likely around 800kg, smaller than large male northern Arctodus individuals (though still larger than any living bear on average)
Indeed
why are you on every video relating to prehistoric organisms
Just curious, where can I find more info on the way they estimated the mass?
Great video! could you please elaborate further on why arctotherium elongated limbs become a hindrance? It puzzles me why is that case.
Could you do a video on Mosbach Lion
Climate change and human colonization will always spell "extinction" for every species.
I prefer humans to animals that EAT humans...
Almost as if we're not from around here...
Merci du partage! Stéph.
Fantastic
I would love to see different forms of Andrewsachus could have been and arguments for it. I always thought of it as an Entelodont like animal.
Once again I'm reminded that 13,000 years ago the "Younger Dryas Event" killed off so many species..
I like the new editing style, should probably keep it
Darn sorry i am 6 days late but thanks very much for the awesome bear video.....
Old Shoe🇺🇸
Never heard of the toxodontids. Looking that up next.
Love it ❤
Beaut Video.
Did you do a video talking about the 500kg sabre tooth cat
Right On
Am i the only one who knew about the giga bears since i was a little kid and only recently found out about andrewsarcus? Damn
This thing looks like it’ll definitely make its way into Joe Rogan’s podcast.
What about _really_ carnivores (hypercarnivore?) Megistotherium's gotta take it right?
Love this beast
That’s just mind boggling
honestly considering it was that heavy and tall, it could probably be a serious predator to elephants given an ambush, and elephants would be very scared to fight something of its size, not knowing whether or not this bear will end its life.
That's probably why elephants of that time period were of equivalent size, power and dimensions.
I definetly would not want to ever meet this bear on a cold snowy night
So cool
imagine going hiking and discovering the fossils of a new species.
0:34 could you tell me what animals were those trying to take down the glyptodon?
Protocyon
Thank you
Never mind I am happy the video is back 🎉🎉🎉🎉🎉🎉😍🤩😍🤩😚
If you really want to find large predatory mammals you gotta go to sea. The Blue Whale is not only the largest Ocean Mammal alive today, it is also the largest known predatory mammal. No foolin. It eats Krill in huge schools. Krill, for those who don't know, are tiny shrimps. Also, the Sperm Whale is the largest Macropreadatory sea mammal alive today.
I like how you made this video with that title even. Though just a month ago in your other video you said those terrestrial crocodiles were the largest land carnivores since the time of the dinosaurs.
Yep people love to eat this kind of shit up !