Geography of Beringia and levels of UV radiation ... This population was genetically isolated for 2,500-9,000 years because of the ice to the east and extensive mesic tundra to the west.

Before Earth's glaciers dramatically receded and filled the oceans at the end of the last ice age some 11,000 years ago, the bridge was an expansive migration ... east and west Beringia suggesting ...

New genetic evidence supports the hypothesis that the first people in the Americas all came from northeast Asia by crossing a land bridge known as Beringia ... the last ice age the land bridge ...

Although the planet has been moving through the megaphase of an Ice Age for the past 2m years ... Yet strangely, stretches of northern Asia and Beringia (now the Bering Strait) were relatively ...