Among today’s birds, the species most closely resembling their dinosaur ancestors are large, flightless ground-dwellers like ostriches, emus (pictured above), cassowaries, rheas, and kiwis. Some of ...

Some 66 million years ago, life on Earth had a pretty bad day. The infamous Chicxulub asteroid slammed into the planet. The ...

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 ...

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 ...

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 ...

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

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 ...

The Triassic-Jurassic Extinction Event: How Dinosaurs Took Over Roughly 201 million years ago, the Triassic-Jurassic extinction event wiped out about 76% of all marine and land species on Earth. This ...

A site in the San Juan Basin of northwestern New Mexico is providing a rare glimpse into the last days of the dinosaurs.Rocks and fossils at the Naashoibito Member site show an ecosystem that was ...