<a href="https://en.wikipedia.org/wiki/Beringia" class="extiw" title="en:Beringia">Beringia</a> Land Bridge. Animated gif of its progress from 21.000 BP (before present) to modern times. See also: <a href="//commons.wikimedia.org/wiki/Bering_Strait" title="Bering Strait">Bering Strait</a>
NOAA
1999
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