Is This Plisticene Plistocene?

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archaeologist's lot, archaeologists are very sceptical of this. But one of the most significant pieces of evidence that shows that these really are quite old is that a macodon comes along and steps on the mud right on top of a human footprint. It's, there's no question that there's an association here. And by the way, the plisticene was up until about 12 thousand years ago,. as that writ ye, give her take me.

Thousands of years ago, humans crossed a land bridge from Siberia into Alaska. They tried to move south, but a two-mile-high, coast-spanning ice wall stood between them and the rest of the continent.

How did they get past it?

Scholars have fought over that question for decades. But in her book, “Origin,” Jennifer Raff says breakthroughs in genetics have given scientists an entirely new understanding of how the Americas were peopled and what happened in the millennia that followed.

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