The rich resources of Pacific kelp forests helped humans populate the Americas. Now depleted by as much as 95 percent, they ...

Poking holes in the sea floor that used to be part of the Bering Land Bridge, researchers have found that large swaths of it ...

Mass firings and resignations have caused the National Park Service to lose 9% of its staff. Now, lease terminations by the administration are putting 34 field offices and facilities on the brink of ...

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Another hypothesis suggested early modern humans migrated from Africa via a land bridge at the southern end of the Red Sea, ...

A giant flying squirrel — about the size of today’s house cats — once soared through the skies over what is now Southern ...