Our planet’s first known mass extinction happened about 440 million years ago. Species diversity on Earth had been increasing ...

The Mesozoic Era extinctions formed the world as we know it today. Read about what caused them and which animals survived.

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 communities ... such as the end-Cretaceous event that famously wiped out the non-avian dinosaurs. "Our model offers a great ...

After Earth's worst mass extinction, surviving ocean animals spread worldwide. Stanford's model shows why this happened.

Everyone knows that dinosaurs are extinct ... It is referred to as the Permian-Triassic extinction event because it spanned these geological Periods. You may also see it called the Great Dying.