Indeed, the earliest mammal we are currently aware of is the Brasilodon quadrangularis – a diminutive critter described as ...

A team of researchers spotted two teeth fossils of creatures living alongside dinosaurs who later turned out to be of human ancestors.

As a master’s student at Indiana University a few years ago, David Grossnickle became fascinated with the evolution of early mammals. His dissertation project involved comparing the skulls of modern ...

Some 215 million years ago in what is now northwestern Argentina, the terrestrial crocodylomorph Hemiprotosuchus leali prepares to devour the early mammal relative Chaliminia musteloides. (Image ...