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 ...

Dinosaurs ruled the Earth for millions of years, and even today they often rule the box office when great movies are made about them. When most people think of dinosaurs, they picture giants like the ...

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 ...

The arrow doesn't just go in one direction." Dinosaurs became extinct after a large asteroid slammed into the Yucatan Peninsula. Scientists looking for evidence of the asteroid saw that the rocks ...

Dinosaurs’ extinction “re-engineered” Earth’s surface, according to new research. The reptiles had such an “immense” impact on the planet that their sudden exit led to wide scale changes in landscapes ...

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 ...

The earliest known ancestors of turtles appeared about 220–240 million years ago (in the late Triassic period), roughly the ...

When it comes to dinosaur extinction, the working idea is what’s called the bolide impact. This is the hypothesis that a meteorite came to the surface of the Earth, hit the Earth and led to the ...

SEATTLE — The Pacific Science Center will close its doors for five weeks beginning Sept. 2, marking the end of an era as it retires its dinosaur exhibit that has entertained visitors for four decades.

It won't be a massive asteroid that dooms these Seattle dinosaurs. The sky won’t darken into a lethal haze of vaporized rock and soot. But the Pacific Science Center’s animatronic dinosaurs are going ...