Therapsids, the ancient relatives of mammals, once roamed Earth in great numbers during the middle to late Permian period.

Beneath the soil of Majorca, a treasure from the Permian era has emerged ... Among these, the gorgonopsians, saber-toothed creatures, ruled as apex predators. These animals, neither fully mammals ...

This illustration shows the percentage of marine animals that went extinct at the end of the Permian era by latitude, from the model (black line) and from the fossil record (blue dots).

the team populated their model with the modern relatives of the creatures of the end-Permian era. Complete with mollusks like clams, oysters, snails, and slugs, the model showed how various ...

Some have proposed that the disappearance of certain predators and competitors allowed some of the surviving creatures to thrive. And others have proposed that the climate changes associated with the ...