Initially believed to be a cold, arid grassland, the stretch more resembled the modern-day Yukon-Kuskokwim floodplain.
China and Russia, America’s top two global adversaries, are working together as never before, probing the defenses of the U.S ...
Poking holes in the sea floor that used to be part of the Bering Land Bridge, researchers have found that large swaths of it ...
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