When you think of dinosaurs, your first thoughts may include some of the more notorious species. In fact, of the more than 700 dinosaurs scientists have discovered, most people think of the larger ...

Footprints of small dinosaurs, 250 million years old. Oct. 6, 2010— -- It was 250 million years ago, and the world had just been through hell. Something -- perhaps an asteroid impact, perhaps a ...

A 230-million-year-old fossil found in Argentina shows that the evolution of sauropod dinosaurs’ long necks began earlier ...

WASHINGTON, Aug 15 (Reuters) - Tyrannosaurus subdued prey with raw power, using bone-crushing bite force. But other meat-eating dinosaurs that rivaled T. rex in size used different approaches.