The Jurassic Period is one of the three prehistoric geological periods of the Mesozoic Era. It spans from 145 million to 201 ...

An analysis of North America’s fossil record for the 18 million years before dinosaurs disappeared suggests the prehistoric ...

The Mesozoic Era extinctions formed the world as we know it today. Read about what caused them and which animals survived.

Researchers link two ancient mass extinctions to nearby supernova explosions, which may have damaged Earth's atmosphere and triggered global biodiversity loss. A new study suggests that at least two o ...

It’s a long-standing debate in paleontology: Were dinosaurs thriving when an asteroid hit Earth one fateful spring day 66 million years ago ... years before the mass extinction at the end ...

The idea that extreme heat could one day cause a mass extinction and end the dominance of humans is not as farfetched as it ...

A Texas-based startup has revived the long-extinct dire wolf, but should we take their efforts with a pinch of salt?

During the early Paleocene, about 66 to 56 million years ago, a species of small mammal known as Mixodectes pungens […] ...

If humanity fails to reverse the impacts of climate change, Earth could face a mass extinction event comparable to that of the Permian Period (299 to 251 million years ago), when approximately 90 ...

I called RFK Jr. an "extinction-level" threat to US biomedical science and public health. That extinction is under way.