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

One theory says a single population of modern humans migrated from southern Siberia across the Bering Land Bridge (Beringia) around 30,000 years ago, and could have crossed over to the Americas as ...

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 ...

Another hypothesis suggested early modern humans migrated from Africa via a land bridge at the southern end of the Red Sea, across the Bab el Mandeb (Arabic for "Gate of Grief") a ...

Poking holes in the sea floor that used to be part of the Bering Land Bridge, researchers have found that large swaths of it were floodplains pocked with bogs and ponds that may have restricted ...