The physical differences between the earliest known fossils and those from the dinosaurs that lived much later suggest that animals had already been evolving for some time. Paleontologists believe ...

Where they lived: Dinosaur fossils have been found on every continent, including Antarctica. What they ate: Some ate plants, while others ate animals, including other dinosaurs. How big they were: The ...

Researchers believe that fossilized feces and vomit from dinosaurs can shed light on how the ancient creatures evolved to become a dominant force on Earth. The study, led by Martin Qvarnström of ...

Researchers have conducted the largest study ever on - all right, brace yourself - dinosaur poo. Yeah, no, it sounds a little messy. But as NPR's Geoff Brumfiel reports, the findings may shed new ...

The dinosaurs were not in decline before the asteroid hit, a new study finds. Instead, poor fossilization conditions and unexposed late Cretaceous rock layers mean they're either not preserved or hard ...