Earth’s largest mass extinction eliminated a lot of marine species. But it didn’t eliminate them all. According to a study in Science Advances, warm, oxygen-depleted waters may have helped select ...

Therapsids, the ancient relatives of mammals, once roamed Earth in great numbers during the middle to late Permian period. These land-dwelling creatures would later evolve into mammals, but their ...

Mega El Niños could have intensified the world’s most devastating mass extinction, which ended the Permian Period 252 million years ago, a new study found.

The University of Birmingham and University of Bristol researchers found that these ancient reptiles were ancestors of ...