New research finds extinction rates have been declining for a century, challenging assumptions of an ongoing mass extinction.

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 ...

Nearly all life that ever existed on Earth eventually disappeared. Five known mass extinctions wiped out up to 96 percent of ...

Exploding stars in near-solar space may have triggered at least two mass extinction events in Earth’s history. A new study ...

Violent supernovas may have caused two of Earth’s largest mass extinctions that have never been completely explained, according to a theory put forward in new research.During the final stages of a ...

Almost all life on land and in the ocean was wiped out during "The Great Dying," a mass extinction event at the end of the Permian Era about 250 million years ago. New evidence suggests that the Great ...

The idea that extreme climate change could one day cause a mass extinction and end the human dominance is not as farfetched ...