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That's a theory but not proven. Could have been climate change too, or another cause.
by trompetenaccoun 3y ago
That's a theory but not proven. Could have been climate change too, or another cause.
- bpodgursky 3y agoNorth America had megafauna for 55 million years. Do you really think it's coincidence that they all died out 10,000 years ago?
- stubish 3y agoThe same environmental changes that encouraged humans and other smaller predators to spread to the Americas may also have lowered the population of the megafauna. But yes, I tend to believe that the environmental change that killed of the megafauna was the arrival of predators smart enough to use pointy sticks and fire, which we call evolution.