Siberian Land Bridge

At certain periods during the Pleistocene Epoch, the temperatures turned cold enough to freeze much of the Earth’s water into ice. The sea level dropped as much as 90 m (300 ft) and the shallow Bering Strait between Alaska and Siberia became a natural land bridge on which grazing animals, and the humans who stalked them, passed. Most archaeologists and anthropologists believe that Native Americans descend from Asian peoples who moved into North America by way of this land bridge.

Appears in these articles:

United States (History); Bering Land Bridge National Preserve; Archaeology; North America; United States (People)

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