Add Yahoo as a preferred source to see more of our stories on Google. It's been 66 million years since dinosaurs roamed the Earth, and many may blame an asteroid's explosive collision with our planet ...

WASHINGTON – Scientists have mapped how a group of fearsome, massive dinosaurs evolved and shrank to the likes of robins and hummingbirds. Comparing fossils of 120 different species and 1,500 skeletal ...

The asteroid responsible for our last mass extinction 66 million years ago — wiping out the dinosaurs — originated from the far reaches of our solar system, unlike most asteroids that have struck ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Plant-eating dinosaurs probably arrived in ...

When you throw dinosaurs into the mix, sometimes you find that a rule simply isn't. A new study led by scientists at the University of Alaska Fairbanks and the University of Reading calls into ...

It's been 66 million years since dinosaurs roamed the Earth, and many may blame an asteroid's explosive collision with our planet for the end of the creatures' reign. But for years, scientists have ...