Defined by their disappearance dinosaurs might appear to be evolutionary failures. Not so. Dinosaurs survived and thrived for 165 million years -- far longer than the roughly 300,000 years modern ...

About 150 million years ago, the land that is now the western United States was alive with dinosaurs. New research shows that the smallest members of the biggest dinosaurs played a huge role in ...

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 ...