What caused the Pleistocene Mass Extinction?

[GuateGojira]

This is a very interesting topic.

Previously I believed that humans were the principal factor, based in previous extinctions like the giant sea cow and the Dodo, however, a wider analysis shows that this seems unlikely in many areas.

Why mammoths in America and Asia died while elephants in Africa and Asia don't? Both lived with the modern human. Why the dire wolf died and the grey wolf don't? Both shared its habitat with the human in America.

Even more, why the large extinction affected all mammals over 50 kg in Central and South America (at exception of the jaguar and the tapir), but not in Europe, Asia and Africa?

It is easier to blame the humans, we are incredible destructive in modern time, but we don't know if the early humans were the same. In fact, if we take a view on the oldest cultures of America, Africa and Asia, just to mention a few, most of them have a huge respect for the nature.

I think that the problem is more deep than just pointing fingers. Reply