Before the dinosaurs Before dinosaurs walked the Earth, there was a meat-loving beast called Dimetrodon, which researchers just determined had the first known serrated "steak knife" teeth. Dimetrodon ...

Carnivorous animals come in all shapes and sizes, from the 500-gram quoll to the 500-kilogram polar bear. This disparate group of mammals shares a common feature: canine teeth at the front of their ...

You wouldn't want to meet an ichthyosaur while taking a dip in the early Cretaceous seas. That goes double for Kyhytysuka sachicarum: This newly identified 130 million-year-old marine reptile, now ...

Neanderthals were likely carnivores, a new analysis of the hominins’ dental tartar has revealed. Scientists made the discovery by analyzing the concentrations of different versions, or isotopes, of ...

The fossil of a cat-like mammal that lived between 37 and 40 million years ago has revealed that a group of sabre-toothed carnivores, the nimravids, evolved into diverse species much earlier than ...