I read somewhere that scientists were puzzled as to why modern pronghorn antelope are so much faster, up to 55 mph in short bursts, than any of their potential predators- wolves, grizzles, cougars. From an evolutionary point of view, once a species has evolved to be faster than its predators, there is no selection pressure for it to be any faster. The belief now is that pronghorns evolved to be faster than the American cheetah, and didn't lose their speed when the cheetah went extinct during the great megafauna die-off (Because not enough time has passed for that to happen? Because social selection has continued to favor ultra-fast pronghorns?).
People are getting tired of your evolutionary mumbo-jumbo. Here species did change rapidly because blah blah, there they did not change at all because blah blah blah.
Great question! Maybe they have gotten slower. Higgins et al 2022 find changes in bone size. So maybe they are just getting slower, slowly. I like the idea of the social selection, and it could be tested.
Pronghorn antelope are fascinating animals I’ve killed a couple and it’s amazing that an animal that small with not a lot of muscle can run so fast they are impossible to chase down unless you are in a vehicle and the fact they have survived so long is amazing
It’s amazing how similar prehistoric American grassland ecosystems resembled that of the African Savanna. The fauna were similar (lions, cheetahs, Proboscideans). And just think how many more extinct species that are lost to time. We only know of the ones we have found evidence for in the fossil record which is only a mere fraction of the creatures that roamed this incredible prehistoric planet.
@@shadowmultiverse2022 not super likely that will happen. Because they don't know their reaction to humans yet. Maybe these animals are extinct for a higher cause for humans to evolve . ?
the meteor or comet at the time which exploded over north/south america, asia, europe and antarctica that wiped out nearly every one of these big animals nearly wiped us out too
We know now that was the case and the almost instant melting of glaciers that at the time covered half North America. The evidence of this is still visible.
@tigerLuver i assumed at the time that greenland was a crater from the younger dryas but it has now been accurately dated to 58 million years ago. that being said, that crater isnt needed as there is already tons of other evidence that there were some sort of impacts 12800 years ago that caused mass extinctions on every continent at this same time, except for australia.
I subscribe more to the hypothesis that a cataclysm was more to blame for the sudden and vast extinctions. But I do love your channel especially the human history, amazing channel!
Younger Dryas period is what killed them off. Comet supposedly his the ice sheet causing massive flooding (see Google maps state of Nevada for proof). Once the debris fell back to earth and the freshwater flow into the oceans, disrupted the oceans flow to keep the planet somewhat warm, resulted in a massive freeze like in the movie "the day after tomorrow". Thats why some mega fauna have been found with food still in their mouths while buried in the ice packs of north america and siberia.
One of your best episodes yet! SO fascinating... so many species became extinct between 10,000 -- 12,000 years ago, there cannot be any other reason than early humans, populating like never before, eating their way through species, destroying other predators way of life etc. it is DEFINITELY a human 'problem' these extinctions... we early humans invented spears, bows/arrows, ways of scaring whole herds to fall from their death from chasing them over cliff faces etc.
it couldnt have been humans, because what killed off all these big animals nearly killed off humans at the same time as well. I think it was because of that asteroid that hit greenland 13000 years ago which made global average temperatures drop 20 degrees in a period of less than 5 years
Climate change was equally responsible. Mammoths, for instance, lived in grasslands, which began to be replaced with forest due to climate change. Independent of human activities, they may still have died out, but much later. But human hunting struck already vulnerable species and giving them the final push to extinction.
Humans and spears both existed for 2.5 million years. Why didn't these animals go extinct at the very beginning of the Pleistocene? Not to mention the human population was never big. It remained low until the late Neolithic and Bronze Age.
It’s sad, here in Florida we barely have any large animals, except alligator, I go hiking often and barely see anything but birds and alligators, I guess that’s a good thing though, safer
@0:21 they probably went extinct for the same reason most animal species did, overhunting. Which I guess back then it wasn’t seen as anything other than a meal and also they probably didn’t even know they were going extinct. But If that is why, then it’s also kinda impressive that the humans of that time even had the tools good enough to to take out something as amazingly big as a wooly mammoth and other creature from the time. Which I’m sure they did have decent tools for hunting back then for the “technology” available to them. But if they didn’t go extinct due to an overhunting of them, then it will be very interesting to know what happened. Either way it goes tho, I wish I could see them up close cause I’m sure they were not only huge animals, but some beautiful animals as well. Which I was watching this doc the other day about how this guy thinks he captured picture/video evidence of a Tasmanian Tiger or Thylacine. I’m not sure if it is what it is cause the picture is hard to be able to tell, especially since it is a baby of whatever it is, but man if it is what he says it is, then it is so impressive he found it and also impressive that they still exist. Though the % of that being what it is is slim to none, I can only hope it is that to give the species a chance of still being around. Cause that would be amazing. And if it is, I hope they either leave them alone, or if they’re going to try to mess with them, I hope it would only be for mating purposes to get the numbers of them back up some. Though I say just let them be, but you know how humans are haha
overkill doesnt really make sense, cause animals mammoths and some other animals shouldnt have went extinct in europe around 10000 years ago at the same time as they did north america, as humans arrived in europe many tens of thousands of years before they came into north america
@@21LAZgoo I could buy overkill for a few species, but not dozens of species around the world at the same time. The short-faced skunk went extinct, and who really hunts that many skunk...
@@nmarbletoe8210 yeah, and 13 species of extremely fast and agile pronghorn antelope which dont weigh more than around 100 pounds, why did they die off when big animals like bison elk and moose survive
Mm m....& Yet 12, 000 years later Africa is still teeming with wildlife. I guess those dumb African hunter gathers just could get their extinction act together to kill everything off. 😆😅🤣😂
@@nmarbletoe8210Multiple recent studies have proven that humans were the cause of Late Pleistocene extinctions (including of small animals). So your comment is outdated.
It’s amazing that one would believe that scattered groups of hunter gatherers with pointy sticks would be responsible for a multi species world wide extinctions? Never mind that the human population was also tanking at the same time. Randall Carlson’s podcast is so good!
@@fishsquishguy1833 and I guess we're to blame for simultaneously melting the glacier fields covering a large portion of north America.. throw in the Clovis people too I guess 😂
@@Randylayhe001 No doubt! Must have been from all the CO2 from their cooking fires and methane from their mastodon farts from all that meat they were eating.
@@fishsquishguy1833Your comment has aged poorly lol. Multiple recent studies have been supporting the overkill hypothesis. Cope and seethe the debate is over.
*Nomad Colossus :* searching for 17th Colossus in shadow of the Colossus game *Extinction blog :* searching for ancient animals... [Not gonna lie, your videos kinda reminds me how Nomad Colossus do his research on his video It would be very amazing if those giant ancient animals become part of Colossus boss in the game]
It wasn't the end of the ice age. We are still in the present ice age which started some 2.75m years ago. It was the end of the most recent glacial period. This alternation between glacial and interglacial periods had happened between 30 and 50 times over this ice age and the mega fauna survived each and every one. That is until the new factor of the introduction of man into the equation. That was the only added factor that could have caused the demise of all these species.
Where’s the crater? Where’s the crater? Blah blah blah… People are confusing a comet with a meteorite. If a two mile wide high density meteorite composed mostly of solid iron and or other heavy solid metallic materials strikes the earth it’s pretty likely to penetrate the atmosphere and leave a crater. If the same size cosmic impact is a caused by a fragmented comet made mostly of frozen gases and ice, which would also be travelling much, much faster than a typical meteorite, and it happens to enter the earth’s atmosphere above a 2 mile thick ice sheet, could we expect it to leave the same characteristic crater as the much denser, much slower moving meteorite? Because of the different characteristics between a comet and a meteor, the answer is no. If the earth gets hit with a fragmented comet the majority of the energy would be released when the comet hits the atmosphere rather than the ground, especially if the comet comes in at a more oblique angle, which would likely be the case due to the highly elliptical orbit typical of most comets. Take an ice cube directly out of the freezer and drop it in room temperature water. The rapid temperature change will cause the ice cube to pop and fracture. Now imagine a comet traveling at a speed of many thousands of miles per hour with a core temperature in the range of -200 degrees Celsius. The heat generated from friction when it enters the atmosphere would cause an almost instantaneous detonation, releasing energy in the form of enormously devastating atmospheric shock waves. This kind of event would have been more than capable of causing the mega fauna extinction associated with the younger dryas without leaving a crater discernable today. Particularly if the explosion occurred over an ice sheet up to two miles thick. Anthony Zemora's work exploring the origin of the Carolina Bays made me a believer.
Lol nope. The younger dryas argument has been debunked. Multiple recent studies have proven that humans (Homo sapiens) were the cause of Late Pleistocene extinctions.
Once again, heresay and shoddy research as far as the American lion and Smilodon are concerned. Why do people insist on making the American lion much bigger than it actually was?
Wow! *unbelievable* that small bands of roving hunter gathers wiped-out millions of *giant* Mastodons, Horses, Beavers, Armadillos, Lions, Bison, Bears,Elk, Ground Sloths, Rhino's, Camels & countless other animals ...😏😉😆😅🤣
I read somewhere that scientists were puzzled as to why modern pronghorn antelope are so much faster, up to 55 mph in short bursts, than any of their potential predators- wolves, grizzles, cougars. From an evolutionary point of view, once a species has evolved to be faster than its predators, there is no selection pressure for it to be any faster. The belief now is that pronghorns evolved to be faster than the American cheetah, and didn't lose their speed when the cheetah went extinct during the great megafauna die-off (Because not enough time has passed for that to happen? Because social selection has continued to favor ultra-fast pronghorns?).
People are getting tired of your evolutionary mumbo-jumbo. Here species did change rapidly because blah blah, there they did not change at all because blah blah blah.
pronghorn antelopes are survivors man. they survived the younger dryas mass extinction event while mammoths, giant beavers and sabertooth cats didnt
Great question! Maybe they have gotten slower. Higgins et al 2022 find changes in bone size. So maybe they are just getting slower, slowly. I like the idea of the social selection, and it could be tested.
@@andreysamuylik8047 salty little sea lion you are
Pronghorn antelope are fascinating animals I’ve killed a couple and it’s amazing that an animal that small with not a lot of muscle can run so fast they are impossible to chase down unless you are in a vehicle and the fact they have survived so long is amazing
Hey bro don’t quit please
surely they were beautiful animals!
Awesome
And probably delicious
Such gigantic animals fascinate me.
It’s amazing how similar prehistoric American grassland ecosystems resembled that of the African Savanna. The fauna were similar (lions, cheetahs, Proboscideans). And just think how many more extinct species that are lost to time. We only know of the ones we have found evidence for in the fossil record which is only a mere fraction of the creatures that roamed this incredible prehistoric planet.
yeah man, both the ice age megafauna and the dinosaurs got wiped out by the same type of event
I wish that animals like mastodons and american lions still exist today.
@@jaydenlee7913 De-Extinction is starting to be real, just wait for a couple of years and they’re back😊
@@shadowmultiverse2022 not super likely that will happen. Because they don't know their reaction to humans yet. Maybe these animals are extinct for a higher cause for humans to evolve . ?
Can somebody tell me what type of mammoth is in the thumbnail right next to the camel
the meteor or comet at the time which exploded over north/south america, asia, europe and antarctica that wiped out nearly every one of these big animals nearly wiped us out too
We know now that was the case and the almost instant melting of glaciers that at the time covered half North America. The evidence of this is still visible.
When did this happen
@@thatoneguy12ize 12900 years ago
@tigerLuver i assumed at the time that greenland was a crater from the younger dryas but it has now been accurately dated to 58 million years ago. that being said, that crater isnt needed as there is already tons of other evidence that there were some sort of impacts 12800 years ago that caused mass extinctions on every continent at this same time, except for australia.
@tigerLuver theres *a lot* of solid evidence for it man
Why did you delete most of your videos and when will the next upload be
Yes I noticed too
Good work but what happened to all your videos I really miss them and want to know what happened to them?
copyright
His old channel got deleted
You make awesome videos
I don't know why your videos don't get likes and subscriptions even though you make great videos, but I say keep trying.👍👍👍
Thank you for your appreciation.
Ooooh yeaaaaaaaahhh.
I subscribe more to the hypothesis that a cataclysm was more to blame for the sudden and vast extinctions. But I do love your channel especially the human history, amazing channel!
Younger Dryas period is what killed them off. Comet supposedly his the ice sheet causing massive flooding (see Google maps state of Nevada for proof). Once the debris fell back to earth and the freshwater flow into the oceans, disrupted the oceans flow to keep the planet somewhat warm, resulted in a massive freeze like in the movie "the day after tomorrow". Thats why some mega fauna have been found with food still in their mouths while buried in the ice packs of north america and siberia.
@@jtmoore662 yes this is the idea I was talking about 🤙🏻
Really interesting! Thank you
Please start making videos with voice narration
I made a video but it was disliked 😁
@@ExtinctionTalesOfForgotten1
Do a video on Thylacosmilus ( Marsupial Sabre-Toothed Cat )!!!
Make video on mammoths
In near future.
Ok
@@ExtinctionTalesOfForgotten1 Make Video on Ocean Sloths and Dire Wolves
@@ExtinctionTalesOfForgotten1 Make Video on Haast's Eagle
Hey, wasn't you channel before called Extinction Vlogs? I used to be subscribed to Extinction Vlogs then it disappeared.
Amazing channel....amazing music. I'm in love.
One of your best episodes yet! SO fascinating... so many species became extinct between 10,000 -- 12,000 years ago, there cannot be any other reason than early humans, populating like never before, eating their way through species, destroying other predators way of life etc. it is DEFINITELY a human 'problem' these extinctions... we early humans invented spears, bows/arrows, ways of scaring whole herds to fall from their death from chasing them over cliff faces etc.
It's very funny that These ancient animals got extinct long before name of GOD existence
it couldnt have been humans, because what killed off all these big animals nearly killed off humans at the same time as well. I think it was because of that asteroid that hit greenland 13000 years ago which made global average temperatures drop 20 degrees in a period of less than 5 years
Climate change was equally responsible. Mammoths, for instance, lived in grasslands, which began to be replaced with forest due to climate change. Independent of human activities, they may still have died out, but much later. But human hunting struck already vulnerable species and giving them the final push to extinction.
Humans and spears both existed for 2.5 million years. Why didn't these animals go extinct at the very beginning of the Pleistocene?
Not to mention the human population was never big. It remained low until the late Neolithic and Bronze Age.
Wrong. Impossible
Walking outdoors is less fun today than for ancestors.
I enjoy this song with these videos
Can someone pleaseeeeee tell me what species of mammoth is ini the thumbnail right to the left of the camel
There has to be some type of natural disaster that took place 11,000-12,000 years ago to cause that mass extinction.
that’s right, they suffered the exact same fate the dinosaurs did
they got killed by the same thing the dinosaurs got killed by i meant
@@21LAZgoo wrong its humans dummy
Very sad
@@21LAZgoothis is way after that
They should be cloned and introduced to wilderness again, as will mammoth in Siberia.
Thank you
As a Chicagoan I am very disappointed our fauna got nerfed to squirrels and coyotes
its baffling that there werent humans around in the americas for longer, and more kinds of humans
Cerutti site is 130,000 years old!
It’s sad, here in Florida we barely have any large animals, except alligator, I go hiking often and barely see anything but birds and alligators, I guess that’s a good thing though, safer
Yoo!!! They really based history off of the ice age movie! Common history W
Do you by any chance know Extinction Blog
I'm pretty sure she's Extinction Blog🤣
That is Extinction Blog. The original channel was taken down by UA-cam, and this one is the new channel.
Guess your back man
@0:21 they probably went extinct for the same reason most animal species did, overhunting. Which I guess back then it wasn’t seen as anything other than a meal and also they probably didn’t even know they were going extinct. But If that is why, then it’s also kinda impressive that the humans of that time even had the tools good enough to to take out something as amazingly big as a wooly mammoth and other creature from the time. Which I’m sure they did have decent tools for hunting back then for the “technology” available to them. But if they didn’t go extinct due to an overhunting of them, then it will be very interesting to know what happened.
Either way it goes tho, I wish I could see them up close cause I’m sure they were not only huge animals, but some beautiful animals as well.
Which I was watching this doc the other day about how this guy thinks he captured picture/video evidence of a Tasmanian Tiger or Thylacine. I’m not sure if it is what it is cause the picture is hard to be able to tell, especially since it is a baby of whatever it is, but man if it is what he says it is, then it is so impressive he found it and also impressive that they still exist. Though the % of that being what it is is slim to none, I can only hope it is that to give the species a chance of still being around. Cause that would be amazing. And if it is, I hope they either leave them alone, or if they’re going to try to mess with them, I hope it would only be for mating purposes to get the numbers of them back up some. Though I say just let them be, but you know how humans are haha
overkill doesnt really make sense, cause animals mammoths and some other animals shouldnt have went extinct in europe around 10000 years ago at the same time as they did north america, as humans arrived in europe many tens of thousands of years before they came into north america
@@21LAZgoo I could buy overkill for a few species, but not dozens of species around the world at the same time. The short-faced skunk went extinct, and who really hunts that many skunk...
@@nmarbletoe8210 yeah, and 13 species of extremely fast and agile pronghorn antelope which dont weigh more than around 100 pounds, why did they die off when big animals like bison elk and moose survive
Mm m....& Yet 12, 000 years later Africa is still teeming with wildlife.
I guess those dumb African hunter gathers just could get their extinction act together to kill everything off.
😆😅🤣😂
@@nmarbletoe8210Multiple recent studies have proven that humans were the cause of Late Pleistocene extinctions (including of small animals). So your comment is outdated.
My favorite is the wolly mammoth
Not bad :)))
Really? no mention of the Younger-Dryas event? 00:41 "to a lesser degree" ice age people are responsible? LOL... ok.
It’s amazing that one would believe that scattered groups of hunter gatherers with pointy sticks would be responsible for a multi species world wide extinctions? Never mind that the human population was also tanking at the same time.
Randall Carlson’s podcast is so good!
@@fishsquishguy1833 and I guess we're to blame for simultaneously melting the glacier fields covering a large portion of north America.. throw in the Clovis people too I guess 😂
@@Randylayhe001 No doubt! Must have been from all the CO2 from their cooking fires and methane from their mastodon farts from all that meat they were eating.
Your comment has aged poorly lol. Multiple recent studies have been backing humans being the main cause of Late Pleistocene extinctions. Cope
@@fishsquishguy1833Your comment has aged poorly lol. Multiple recent studies have been supporting the overkill hypothesis. Cope and seethe the debate is over.
*Nomad Colossus :* searching for 17th Colossus in shadow of the Colossus game
*Extinction blog :* searching for ancient animals...
[Not gonna lie, your videos kinda reminds me how Nomad Colossus do his research on his video
It would be very amazing if those giant ancient animals become part of Colossus boss in the game]
"...went extinct about 10,000 years ago". Get some facts!
It wasn't the end of the ice age. We are still in the present ice age which started some 2.75m years ago. It was the end of the most recent glacial period. This alternation between glacial and interglacial periods had happened between 30 and 50 times over this ice age and the mega fauna survived each and every one. That is until the new factor of the introduction of man into the equation. That was the only added factor that could have caused the demise of all these species.
Why did you talk about like 5 cats but only one sloth
It’s just lazy to not have audio
That beaver must have dammed up whole rivers
Don't Forget lakes
Nope, they didn’t behave like that. They were basically giant muskrats in behavior. They also had a Muskrat tail too.
@@aleksandarvil5718They were way more similar to Muskrats in behavior and did not have the classic beaver tail.
Rip extinct animals. 🦖🦤🦣
They are in animal heaven now,
🦤🦤🦤
Where’s the crater? Where’s the crater? Blah blah blah… People are confusing a comet with a meteorite. If a two mile wide high density meteorite composed mostly of solid iron and or other heavy solid metallic materials strikes the earth it’s pretty likely to penetrate the atmosphere and leave a crater. If the same size cosmic impact is a caused by a fragmented comet made mostly of frozen gases and ice, which would also be travelling much, much faster than a typical meteorite, and it happens to enter the earth’s atmosphere above a 2 mile thick ice sheet, could we expect it to leave the same characteristic crater as the much denser, much slower moving meteorite?
Because of the different characteristics between a comet and a meteor, the answer is no. If the earth gets hit with a fragmented comet the majority of the energy would be released when the comet hits the atmosphere rather than the ground, especially if the comet comes in at a more oblique angle, which would likely be the case due to the highly elliptical orbit typical of most comets. Take an ice cube directly out of the freezer and drop it in room temperature water. The rapid temperature change will cause the ice cube to pop and fracture. Now imagine a comet traveling at a speed of many thousands of miles per hour with a core temperature in the range of -200 degrees Celsius. The heat generated from friction when it enters the atmosphere would cause an almost instantaneous detonation, releasing energy in the form of enormously devastating atmospheric shock waves. This kind of event would have been more than capable of causing the mega fauna extinction associated with the younger dryas without leaving a crater discernable today. Particularly if the explosion occurred over an ice sheet up to two miles thick. Anthony Zemora's work exploring the origin of the Carolina Bays made me a believer.
- Randall Carlson
Lol nope. The younger dryas argument has been debunked. Multiple recent studies have proven that humans (Homo sapiens) were the cause of Late Pleistocene extinctions.
Don't forget north American tapirs.
For next video: dugong
Once again, heresay and shoddy research as far as the American lion and Smilodon are concerned. Why do people insist on making the American lion much bigger than it actually was?
U.S.A or N american Megafauna
Oh man the siber tooth looks krasy
Younger Dryas
@kahanuermeyas-tulu4056 yes
Nope
@@basedchad6035Nope, multiple recent studies have been arguing for the overkill hypothesis.
To many extinctions at the 10.000 yr mark to be of human hunting/causes.
Lol your comment has aged poorly. Multiple recent studies have actually been backing up the overkill hypothesis. Cope
@raihothexiv15th37 studies don't mean facts
@@travhammer Yes they do. Cope and seethe it was us (Homo sapiens).
Why did you delete your big cat videos if you don’t to bring them back by January 2023 I am unsubscribing
He didn't delete it. It was copyright and UA-cam removed it. You're such a baby
Very slow video.
conjecture
Let's bring them back with their DNA
Wow! *unbelievable* that small bands of roving hunter gathers wiped-out millions of *giant* Mastodons, Horses, Beavers, Armadillos, Lions, Bison, Bears,Elk, Ground Sloths, Rhino's, Camels & countless other animals ...😏😉😆😅🤣
Donn't forget they wiped out all the megafauna too. Theory is it was a vegan craze for giant salads.
Yup, multiple recent studies have been supporting the overkill hypothesis. Cope
Humans couldn't kill all those beasts must been a comet or some climate change because d African beast's r still around
Nope, it was indeed humans. Multiple recent studies have proven so. Most of Africa’s megafauna was just used to us. That’s why the majority survived.
@@raihothexiv15th37 so why africas wildfauna not extinct something happened in North America most likely a meteor ☄️
@@milin7120 I literally just told you, kid who can’t read. Muted
@@milin7120 I literally just told you. Muted
Eh? Try?
Too many cats
The music is incredibly annoying.