Everyone knows that dinosaurs are extinct, and most people have some idea about how it might have occurred. But the exact periods in history when it happened are less well known. Was it a single ...

"Specifically, the impact of their extinction may not just be observable by the disappearance of their fossils in the rock record, but also by changes in the sediments themselves." Dr. Weaver says the ...

“One of the great mysteries has been the survival and flourishing of a major group of amphibians called the temnospondyls,” Aamir Mehmood, a study co-author and evolutionary biologist at the ...

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 single asteroid descended without warning to end the reign of dinosaurs, at the peak of their size and strength. It's too ...

An asteroid strike 66 million years ago caused a mass extinction that wiped out 75% of Earth’s animal species, including all non-avian dinosaurs. But “night” lizards survived. A new Yale study has ...

The Cretaceous–Paleogene (K–Pg) mass extinction event, marking the boundary between the Cretaceous and Paleogene periods approximately 66 million years ago, stands as one of the most profound ...

The Cretaceous–Paleogene (K-Pg) extinction, which wiped out the dinosaurs 66 million years ago, marked one of Earth’s most dramatic mass die-offs. Before this event, the planet thrived with dinosaurs, ...

WACO, Texas — A new study published on Thursday, co-authored by researchers from Baylor University, New Mexico State University, the Smithsonian Institution and several international collaborators, ...

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 ...