On the final day of the Cretaceous period, some 66 million years ago, Earth was teeming with a dazzling variety of dinosaurs.

Warning: Spoilers for Uncanny X-Men #14!The dinosaurs have finally been given a canonical reason for their extinction in the Marvel Universe. Dinosaurs have always been an important staple of Marvel ...

Dinosaurs weren't in decline when an asteroid smashed into Earth and wiped them out, scientists say. Instead, the idea that dinosaur diversity was declining before the asteroid struck 66 million years ...

When the big asteroid hit Mexico 66 million years ago, it set off wildfires, tsunamis and massive clouds of dust that darkened the skies, killed much of Earth’s plant life and triggered a chain of ...

Rocks formed immediately before and after non-avian dinosaurs went extinct are strikingly different, and now, tens of millions of years later, scientists think they’ve identified the culprit—and it ...

A new species of dinosaur, nicknamed a “murder muppet,” was discovered by an undergraduate student at Virginia Tech. His ...

True extinction is final, a point of no return where a species disappears forever. And sadly, species go extinct all the time ...