The Jurassic Period is one of the three prehistoric geological periods of the Mesozoic Era. It spans from 145 million to 201 million years ago. This period was preceded by the Triassic Period and ...

Around 66 million years ago, Earth endured a mass extinction event that marked the end of the Cretaceous and the start of the Paleogene period. Roughly 75% of all species vanished, including every non ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's impression of the last dinosaurs from southern North America features a long-necked Alamosaurus. - Natalia Jagielska A ...

The evolution of life on planet Earth has occurred gradually over time, but it has not always been a peaceful process. Life has had to face cataclysmic environmental changes, and sometimes that ...

There might still be dinosaurs living on Earth today — if not for the giant asteroid. It’s a long-debated issue, but now researchers say the idea Dinosaurs were in decline before the Chicxulub ...

It had quite an impact — striking with the force of 10 million atomic bombs. Sixty-six million years ago, the asteroid that slammed into what is now the Yucatán Peninsula caused a mass extinction ...

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 ...

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, ...

From horseshoe crabs to crocodiles, some of these creatures have looked about the same for hundreds of millions of years.