Imagine a world where furry mammals scuttle under the feet of gigantic dinosaurs, not yet destined to rule the Earth. It’s a ...

A controversial idea suggests the ancestors of echidnas were more like the platypus. For the first time, fossil evidence ...

A small bone found 30 years ago at Dinosaur Cove in southeastern Australia could turn what we know about the evolution of echidnas and platypuses on its head.

Researchers have precisely dated key fossil sites in Central Anatolia, Türkiye, to 7-10 million years ago using a new ...

Scientists note that the answer to this hairy question lies in evolution. Over hundreds of millions of years, a small handful ...

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