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 ...

Ancient sea organisms survived until a sudden extinction 550 million years ago, revealing what may be the first major mass ...

Lost fossils reveal that some of the first ocean predators went global astonishingly fast after Earth’s worst extinction.

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 ...

“Dinosaurs are icons of extinction, but they are only one of many groups that evolved, flourished and died out," the Curator of Science at the Bruce Museum said.