Scientists at the American Museum of Natural History investigated old specimens that had been at the museum for decades and ...

Fossils reveal dinosaurs were flourishing in diverse ecosystems right up until the asteroid impact ended their reign.

More mammals were living on the ground several million years before the mass extinction event that wiped out the dinosaurs, new research has revealed. More mammals were living on the ground several ...

There's more that we don't know about dinosaurs than things that we do, but we're still discovering new things about how they ...

A microbiologist named João Pedro de Magalhães has proposed the idea that the reign of dinosaurs forced mammals to speed up their reproductive cycle, eliminating key longevity genes. de Magalhães ...

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

If you want to get by in this world, you could do a lot worse than developing a predilection for ants. In fact, ant-eating may be a dramatically overlooked recipe for success. According to new ...

The idea that dinosaurs were already declining well before the asteroid impact 66 million years ago seems established.

WASHINGTON -- They just needed some leg room: New research shows the great dinosaur die-off made way for mammals to explode in size -- some more massive than several elephants put together. The ...