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.

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 ...

The idea that extreme climate change could one day cause a mass extinction and end the human dominance is not as farfetched ...

Earth has a long and dramatic history, and one recurring theme is extinction. Did you know that over the last 500 million years, our planet experienced five major mass extinction events? These events ...

UC College of Arts and Sciences Professor Thomas Algeo has been studying the planet's five major mass extinctions since the ...

For decades, scientists treated the end of Earth’s habitability as a problem for the far future, measured in several billion years. New high powered simulations have now pulled that horizon ...

Everyone knows that dinosaurs are extinct, and most people have some idea about how it might have occurred. But the exact periods in history when it happened are less well known. Was it a single ...

The West Texas desert has a surprising feature: a prehistoric ocean reef. There is a surprising natural wonder in the middle of the vast West Texas desert: a prehistoric ocean reef built from the ...

Add Yahoo as a preferred source to see more of our stories on Google. Sharks might be the all time bullet-dodging champions. They’ve been around for about 450 million years, longer than trees, longer ...