A cataclysm engulfed the planet some 252 million years ago, wiping out more than 90% of all life. Known as the Great Dying, the mass extinction that ended the Permian geological period was the worst ...

(CNN) — A cataclysm engulfed the planet some 252 million years ago, wiping out more than 90% of all life. Known as the Great Dying, the mass extinction that ended the Permian geological period was the ...

Two hundred and fifty million years ago, ninety percent of marine species disappeared and life on land suffered greatly during the world’s largest mass extinction. The cause of this great dying has ...

Scientists don't call it the "Great Dying" for nothing. 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 ...

Around 252 million years ago, Earth experienced its most catastrophic extinction event. Widely known as the Permian extinction and dubbed the “Great Dying,” it wiped out an estimated 90 percent of ...