For years, a mysterious fossil specimen defied categorization, until one paleontologist made a surprising discovery.

Beneath the towering Guadalupe Mountains of Texas lies a dramatic story of transformation. Once part of an ancient sea, the fossilized Capitan Reef now forms craggy peaks and iconic cliffs like El ...

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 ...

Two hundred and fifty one million years ago, the worst mass extinction event Planet Earth has ever seen ruined the life of ...

The end-Permian mass extinction, which occurred approximately 252 million years ago, wiped out over 80% of marine species, ...

Therapsids, the ancient relatives of mammals, once roamed Earth in great numbers during the middle to late Permian period.

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

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 ...

China discovers terrestrial "Life oasis" from end-Permian mass extinction period Chinese Academy of Sciences Headquarters Journal Science Advances Funder National Natural Science Foundation of ...

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 ...