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 ...

When considering mass extinctions, people often think of the asteroid strike that wiped out all non-avian dinosaurs. But life on Earth has experienced many extinction events. Now, a trove of fossils ...

About 445 million years ago, Earth’s oceans turned into a danger zone. Glaciers spread across the supercontinent Gondwana, and shallow seas shrank fast.

The fossils offer a rare glimpse into a cataclysmic event that brought a sudden end to the greatest explosion of life in our ...

SALT LAKE CITY — Earth has experienced at least five "mass extinction" events throughout its existence, but some species have been able to survive these major shifts. Utah researchers say they believe ...

Around 540 million years ago, Earth's biosphere underwent a pivotal transformation, shifting from a microbe-dominated world ...

For decades, scientists have debated what wiped out the dinosaurs 66 million years ago. The usual suspects? A massive asteroid or powerful volcanic eruptions. But now, researchers from Dartmouth ...

Learn how geological clues preserved in ancient oceans link repeated volcanic eruptions to Triassic marine extinctions.

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Stewart Edie, Smithsonian Institution (THE CONVERSATION) About 66 million years ago – ...

The Cretaceous-Paleogene mass extinction, occurring approximately 66 million years ago, represents one of the most dramatic biotic crises in Earth’s history. It is marked by the abrupt disappearance ...