christianbaker3 christianbaker3

18-05-2018
Biology

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what caused the sea level change allowing arctic hunters into the americas

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dakotamcclella dakotamcclella

20-05-2018

The theory that the Americas were populated by humans crossing from Siberia to Alaska across a land bridge was first proposed as far back as 1590, and has been generally accepted since the 1930s.

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