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 ...

For decades, the prevailing theory behind the mass extinction that ended the reign of the dinosaurs has pointed to a catastrophic asteroid impact near today’s Yucatán Peninsula. The massive crater of ...

the Late Ordovician mass extinction wiped out roughly 85 percent of all life on Earth, making it the second most deadly (after the Permian extinction—you don’t get the nickname “The Great ...

Everyone knows that dinosaurs are extinct, and most people have some ... It is referred to as the Permian-Triassic extinction ...

Most people think a meteor killed the dinosaurs - but that wasn’t Earth’s biggest extinction. The Permian-Triassic extinction ...

“Dinosaurs were probably not inevitably doomed to extinction at the end of the Mesozoic,” Chiarenza said. “If it weren’t for that asteroid, they might still share this planet with ...

Fossils before and after the end-Permian extinction "go from richly diverse ... Cretaceous event that famously wiped out the non-avian dinosaurs. "Our model offers a great way of studying how ...

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 ...