Earth has a flair for dramatic resets, though it usually takes millions of years to deliver them. Over its long history, life has been knocked back by volcanic eruptions, climate swings, changing seas ...

Add Yahoo as a preferred source to see more of our stories on Google. (Anton Petrus/Moment/Getty Images) Life on Earth, beginning with simple microorganisms that evolved and diversified into the ...

An ancient crater beneath Ames, Oklahoma, is now believed to be nearly 100 million years younger than previously thought, potentially linking it to a major mass extinction event.

Since its formation approximately 4.5 billion years ago, Earth has endured five mass extinctions, where roughly 75 percent of the planet's species disappeared within 2.8 million years - merely a blink ...

Almost a hundred new animal species that survived a mass extinction event half a billion years ago have been discovered in a small quarry in China, scientists revealed Wednesday. The asteroid that ...

Mass extinctions are extremely catastrophic events on Earth. Throughout Earth's evolutionary history, numerous mass extinctions have occurred, with five major mass extinctions being particularly ...

A quarter of a billion years ago, long before dinosaurs or mammals evolved, the predator Dinogorgon, whose skull is shown here, hunted floodplains in the heart of today's South Africa. In less than a ...