Our planet’s first known mass extinction happened about 440 million years ago. Species diversity on Earth had been increasing over a period of roughly 30 million years, but that would come to a halt ...

About 250 million years ago, at the end of the Permian period, something killed some 90 percent of the planet's species. Less than 5 percent of the animal species in the seas survived. On land ...

About 252 million years ago, 80 to 90 percent of life on Earth was wiped out. In the Turpan-Hami Basin, life persisted and bounced back faster.

A Texas representative wants to remove a rare lizard from the endangered species list, which would pave the way for oil and ...

Earth's largest mass extinction eliminated a lot of marine species. But it didn't eliminate them all. According to a study in Science Advances, warm, oxygen-depleted waters may have helped select ...

About 252 million years ago, upward of 80% of all marine species vanished during the end-Permian mass extinction—the most extreme event of its kind in Earth's history. What followed was a ...

The lizards live in a very small area of West Texas and southeastern New Mexico that includes part of the Permian Basin, which over the last decade has been one of world’s fastest-growing oil and gas ...

However, clams took over the oceans in the aftermath of the end-Permian extinction, along with oysters, snails, and slugs. Earth’s largest mass extinction eliminated a lot of marine species. But it ...