A new study reveals that Earth's biomes changed dramatically in the wake of mass volcanic eruptions 252 million years ago.

Our planet’s first known mass extinction happened about 440 million years ago. Species diversity on Earth had been increasing ...

The discovery of nearly 20 alligator-size amphibians that died together during the Triassic in what is now Wyoming is providing scientists important clues about these creatures' lives.

For decades, the prevailing theory behind the mass extinction that ended the reign of the dinosaurs has pointed to a ...

Scientists racing the clock to finish excavating top southern Utah dinosaur fossil site before construction on a power ...

Dinosaurs are the extinct relatives of birds that roamed the lands and seas of ancient Earth. They first appeared around 240 ...

The mass extinction that ended the Permian geological epoch, 252 million years ago, wiped out most animals living on Earth. Huge volcanoes erupted, releasing 100,000 billion metric tons of carbon ...

After Earth's worst mass extinction, surviving ocean animals spread worldwide. Stanford's model shows why this happened.

The mass extinction that ended the Permian geological epoch, 252 million years ago, wiped out most animals living on Earth. Huge volcanoes erupted, releasing 100,000 billion metric tons of carbon ...

A new study reveals that a region in China's Turpan-Hami Basin served as a refugium, or "life oasis," for terrestrial plants during the end-Permian mass extinction, the most severe biological ...