>>17973482
>>17973470

It could have been more of a 60/40 split between pressure from human hunting and climate-change. The animals could adapt to one or the other, but not both.
The people that came over from the Bering Strait were a caribou and mammoth hunting culture and If we look at Paleo-Indian dumps and butcher sites their (seemingly) preferred prey reflects that: were bison, caribou, elk, and mammoths & mastodons, and then a bunch of other miscellaneous animals. I say this because a lot of animals we have minimal or zero evidence of them hunting or eating also died out like tapirs, peccary, taiga, camels, also died out.