After years of detective work, University geosciences professor Gerta Keller and her colleagues have found that an intensive period of volcanic eruptions and a series of asteroid impacts likely ended ...

We all know the most popular theory about dinosaur extinction, which is a massive asteroid hitting Earth and wiping out nearly everything. However, over the years, scientists, writers, and even ...

Dinosaurs were a different branch of archosaurs that later evolved into birds. The specific ancestors of dinosaurs were small, fast, upright-walking reptiles called dinosauromorphs. These creatures ...

Silhouette of the Tyrannosaurus called Stan. This "tyrant lizard king," was excavated and prepared by the Black Hills Institute. © Louie Psihoyos/CORBIS What ...

For decades, scientists have debated what wiped out the dinosaurs 66 million years ago. The usual suspects? A massive asteroid or powerful volcanic eruptions. But now, researchers from Dartmouth ...

Add Yahoo as a preferred source to see more of our stories on Google. A new study reveals dinosaurs in New Mexico were thriving just before the asteroid impact that ended their reign, overturning long ...