The ice-free corridor between Berengia and land south of the ice sheet was NOT always open. In fact recent evidence shows that early humans entered North America despite the lack of an ice free corridor far earlier than previously thought using many different routes and during many different times. One obvious way was by using ice free coastal waters to skirt glaciated areas and enter the ice free regions further south. It is unlikely that humans were the "main cause" of megafauna extinction since we had existed with these animals for 100's of thousands of years earlier ;) rather, the Younger Dryas Impact event plus starving humans finishing off the few weak and traumatized megafauna left seems more likely as mounting evidence of this apparent multi comet fragment event is mounting :) Note that until recently Africa still had a good number of megafauna till modern humans slaughtered most of them with firearms and habitat destruction.
4:11 In fact, as far as I understand, humans were not numerous or technologically advanced enough to be the main cause of the extinction of the Ice Age megafauna, but at most, we were the last nail in the coffin.
Nonsense, Yamatano. Don't believe the lies of the ones who want to believe that their ancestors were good. "Uga Uga, giant sloth tasty!" "Giant sloth make my wives fertile!" "Giant sloth are magical!" ... "Uh, why so few giant sloth here? ... I need more sloth to keep my wives fertile." "Scout says that giant sloth still exist in eastern hills, so I will move my clan to eastern hills. I don't care if half my children die on the track. Sloths are magical and I need them so that my family remains fertile. My children don't die because of the track, but because we don't have sloth meat." "Me hungry. Let's go, I wanna hunt me a sloth!"
@@sakrafixnochamol ...Humans have lived longer in the African savanna than anywhere in the world and the ecosystem was only harmed when people outside the continent started doing their thing around 300 years ago.
@@yamatanoorochi6203 I'm not sure about the first proposition. But on the Africa point I can say this: African species had millions of years to develop and evolve right beside us. In other regions we were a "surprise". Which makes a huge difference.
@@yamatanoorochi6203 WRONG there was also megafauna extinction in Africa, with several species going extinct. The continent wa sjust less impacted than others. And that's mainly because local fauna have coevolved alongside mankind for much longer, same in southern Asia (who also had many extinction but got it easy comapred to the north). Because earlier hominins, such as Homo rerectus had existed in the region for a long time. It's only recently that human spread into temperate and cold region and other continents. All of these extinction happened around 50-10 000 years ago, very recently, due to neandertal, and mainly sapiens. Both wzre the most predatory and destructive of all moderns humans. It's not climate, disease or imaginary meteorite. EVERYTIME we got in an area most large animals died in a few centuries or millenia after our arrival.
After watching a PBS series on American bison; the beginning chapter made a convincing argument, (and is understandably backed up by how other large herbivores behave in grassland and savanna ecosystems), that the Americans bison with the Plains variety in particular; develops the relatively common herbivore defense tactic of grouping together, and breeding steadily into the giant herds that used to roam the plains, because they “developed with people” that were the tribes. Strength in numbers via large herds is still the common defense for the herds on the African savanna and similar ecosystems as described in the lion king. I’m sure there is a lot to learn from the Pleistocene Park experiments, and originally intact ecosystems throughout much of the Holocene before the European conquest, let alone the industrial revolution and modern human civilization of 5 to 6000 years ago. It was at least 4 to 6,000 more years between the agricultural revolution, (at 10 to 12,000 years ago from what I hear), until modern recorded history of ancient China, the Middle East, and ancient European history that we all are familiar with let alone mezzo America. One of my biggest visual inspirations for this ecological history is a before and after illustration in the San Diego zoo, that displays San Diego’s version of the mammoth step during the Pleistocene, and the Holocene ecosystem of today. The missing piece is a middle chapter of pre-colonial San Diego that would’ve included the California grizzly bear, pronghorn antelope, Wolfpacks, and jaguars. Visit the San Diego zoo to find what I’m talking about. I do not doubt that similarly intricate ecosystem processes used to happen during the Ice Age.
Pleistocene park amazing.thanks to Zimovs for they work.
Pleistocene park already has musk ox, moose, aral sheep, camels and cattle
fantastic video!
The ice-free corridor between Berengia and land south of the ice sheet was NOT always open. In fact recent evidence shows that early humans entered North America despite the lack of an ice free corridor far earlier than previously thought using many different routes and during many different times. One obvious way was by using ice free coastal waters to skirt glaciated areas and enter the ice free regions further south.
It is unlikely that humans were the "main cause" of megafauna extinction since we had existed with these animals for 100's of thousands of years earlier ;) rather, the Younger Dryas Impact event plus starving humans finishing off the few weak and traumatized megafauna left seems more likely as mounting evidence of this apparent multi comet fragment event is mounting :)
Note that until recently Africa still had a good number of megafauna till modern humans slaughtered most of them with firearms and habitat destruction.
I’ve known about this place for ages now but I figured it had been on an indefinite hiatus due to a certain “special military operation”
Great vid man!
4:11 In fact, as far as I understand, humans were not numerous or technologically advanced enough to be the main cause of the extinction of the Ice Age megafauna, but at most, we were the last nail in the coffin.
Nonsense, Yamatano. Don't believe the lies of the ones who want to believe that their ancestors were good.
"Uga Uga, giant sloth tasty!"
"Giant sloth make my wives fertile!"
"Giant sloth are magical!"
...
"Uh, why so few giant sloth here? ... I need more sloth to keep my wives fertile."
"Scout says that giant sloth still exist in eastern hills, so I will move my clan to eastern hills. I don't care if half my children die on the track. Sloths are magical and I need them so that my family remains fertile. My children don't die because of the track, but because we don't have sloth meat."
"Me hungry. Let's go, I wanna hunt me a sloth!"
@@sakrafixnochamol ...Humans have lived longer in the African savanna than anywhere in the world and the ecosystem was only harmed when people outside the continent started doing their thing around 300 years ago.
@@yamatanoorochi6203 I'm not sure about the first proposition. But on the Africa point I can say this: African species had millions of years to develop and evolve right beside us. In other regions we were a "surprise". Which makes a huge difference.
@@yamatanoorochi6203
WRONG
there was also megafauna extinction in Africa, with several species going extinct. The continent wa sjust less impacted than others.
And that's mainly because local fauna have coevolved alongside mankind for much longer, same in southern Asia (who also had many extinction but got it easy comapred to the north).
Because earlier hominins, such as Homo rerectus had existed in the region for a long time. It's only recently that human spread into temperate and cold region and other continents.
All of these extinction happened around 50-10 000 years ago, very recently, due to neandertal, and mainly sapiens.
Both wzre the most predatory and destructive of all moderns humans.
It's not climate, disease or imaginary meteorite.
EVERYTIME we got in an area most large animals died in a few centuries or millenia after our arrival.
After watching a PBS series on American bison; the beginning chapter made a convincing argument, (and is understandably backed up by how other large herbivores behave in grassland and savanna ecosystems), that the Americans bison with the Plains variety in particular; develops the relatively common herbivore defense tactic of grouping together, and breeding steadily into the giant herds that used to roam the plains, because they “developed with people” that were the tribes. Strength in numbers via large herds is still the common defense for the herds on the African savanna and similar ecosystems as described in the lion king.
I’m sure there is a lot to learn from the Pleistocene Park experiments, and originally intact ecosystems throughout much of the Holocene before the European conquest, let alone the industrial revolution and modern human civilization of 5 to 6000 years ago.
It was at least 4 to 6,000 more years between the agricultural revolution, (at 10 to 12,000 years ago from what I hear), until modern recorded history of ancient China, the Middle East, and ancient European history that we all are familiar with let alone mezzo America.
One of my biggest visual inspirations for this ecological history is a before and after illustration in the San Diego zoo, that displays San Diego’s version of the mammoth step during the Pleistocene, and the Holocene ecosystem of today. The missing piece is a middle chapter of pre-colonial San Diego that would’ve included the California grizzly bear, pronghorn antelope, Wolfpacks, and jaguars.
Visit the San Diego zoo to find what I’m talking about. I do not doubt that similarly intricate ecosystem processes used to happen during the Ice Age.