When considering mass extinctions, people often think of the asteroid strike that wiped out all non-avian dinosaurs. But life ...

The impact dinosaurs had on Earth was so big that their extinction seems to have caused dramatic and wide-ranging changes to ...

Fossils reveal dinosaurs were flourishing in diverse ecosystems right up until the asteroid impact ended their reign.

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 ...

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 ...

The fossils offer a rare glimpse into a cataclysmic event that brought a sudden end to the greatest explosion of life in our planet's history.

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 ...

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 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 ...