For decades, scientists have believed that meat-eating drove human evolution, particularly our enlarged brains. This carnivorous origin story has become so entrenched that few questioned it: our ...

One of us (Dr. Lüdecke) began working with fossilized tooth enamel during her Ph.D.. The focus was on measuring stable carbon ...

Mixodectes pungens, a species of small mammal that inhabited western North America in the early Paleocene, was a mystery.

As early synapsids went about feeding on the plants and animals of their world, what started as basic, conical teeth were modified into different feeding specialties. Mammal teeth eventually ...

a species of small mammal that inhabited western North America in the early Paleocene, was a mystery. What little was known about them had been mostly gleaned from analyzing fossilized teeth and ...

Rodents have long, sharp front teeth that they use for biting and gnawing. The teeth of rodents never stop growing. There are lots of mammals in the world and to help you identify them ...

A leopard-sized mammal sat atop its food chain 30 million ... syrtos, which boasted razor-sharp teeth and a powerful jaw, belonged to an extinct group of meat-eating mammals called Hyaenodonts.

Fossilized teeth from two ancient megafauna suggest they roamed Brazil 3,500 years ago. The find “opens the door to rewrite South American history.” ...