Named for its razor-like teeth, Novaculadon mirabilis came from a rodent-like order that outlived the dinosaur extinction ...

Published last week in the Proceedings of the Royal Society B, a team of Chilean scientists announced the discovery of ...

An unusual find in China suggests some early mammals may have hunted dinosaur for dinner. The fossil shows a badgerlike creature chomping down on a small, beaked dinosaur, their skeletons intertwined.

This artistic rendering based on the 125-million-year-old fossil shows the mammal, Repenomamus, biting the horned dinosaur Psittacosaurus. Often, a fossil is a pile of scattered bones.

For most of us, Jurassic Park (streaming now on Peacock!) was the first time we ever saw dinosaurs and mammals locked in a mortal struggle for survival. Now, scientists have found a blockbuster ...

Mammals have developed astonishing dietary habits over the past 100 million years. A recent study highlights extreme ...

About 125 million years ago, a young mammal about the size of a possum bit down on the side of a beaked dinosaur nearly three times its size. The animals died like that, entangled and at odds with ...

Science Dinosaurs The ancestor of all placental mammals survived the dino-killing asteroid The ancient relative of humans, dogs, and bats briefly coexisted with the likes of Titanosaurs and ...

The mammal is perched on the dinosaur, its paws gripping the reptile’s jaw and a hind limb while its teeth plunge into the ribcage. “I’ve never seen a fossil like this before,” Mallon said.

The unusual fossil from China suggests some early mammals may have hunted down dinosaur meat for dinner. The fossil shows a badger-like creature chomping down on a beaky dinosaur three times its size.