Dinosaurs are famous for being big, from the towering Tyrannosaurus rex to the colossal Apatosaurus. But a new study ...

The smallest known non-bird dinosaurs were far larger than the tiniest mammals, birds, and reptiles alive today. Energy-based ...

Researchers say the newly identified dinosaur is only the fifth species ever named from Zimbabwe and offers fresh clues about ...

Early mammals may have occupied the tiny-animal niches that dinosaurs never filled. The finding could explain why dinosaurs ...

An oddball, vegetarian dinosaur with the silhouette of a flesh-ripping velociraptor, whose fossilised remains were unearthed in southern Chile 13 years ago, is a missing link in dino evolution, ...

An international research team led by Assistant Professor Ryuji Takasaki of the Faculty of Biosphere-Geosphere Science at ...

A bird egg can look surprisingly oversized for the body that produced it. That puzzle becomes even stranger when viewed ...

By Will Dunham July 23 (Reuters) - Snakes first appeared during the age of dinosaurs, but fossils of many early species are so fragmentary that scientists have had difficulty deciphering their ...