[Carry_Okie]

Dr. Charles Kay at Utah State wrote this in Wilderness and Political Ecology: Aboriginal Influences and the Original State of Nature almost 25 years ago, attributing the "Pleistocene die-off" exclusively to people. While I agree that people were significant contributors to the megafauna extinctions, I suspect a confluence of causes, including real climate change at the close of the Pleistocene and singularities such as comet strikes.

[SunkenCiv]

Thanks CO. Whatever else may have been going on here and there, a single kaboom did 99% of it.