[Question_Assumptions]

Yeah, I guess all of those bison and elk ran into caves or burrowed underground. So do genetic studies show any bottlenecks in any other species during that same period? This sounds like just another attempt to avoid the obvious explanation is that the Clovis hunters that crossed over into the Americas from Asia during the last Ice Age were very effective hunters of large mammals to the point where some became extinct.

[mallardx]

Exactly! It was the land-raping, politically incorrect injuns!