Long before T. rex, the Earth was dominated by super-carnivores stranger and more terrifying than anything dreamed up by ...

Since the first sharks emerged in the world’s oceans nearly half a billion years ago, the world has gone through five major ...

Long before the dinosaurs, the Permian period was a brutal time to be alive. In this video, we explore the strange creatures, harsh environments, and the massive extinction event that made the Permian ...

The Permian extinction saw the loss of 80 to 96 percent of all marine species. In the Cretaceous event, perhaps 60 to 75 percent of marine species disappeared. What caused these immense die-offs?

Find the answers to all your dinosaur questions here. Yes, travel back in time with us to the Age of Dinosaurs. Or stay where you are, and watch this collection of documentaries to learn about the ...

Mega El Niños could have intensified the world’s most devastating mass extinction, which ended the Permian Period 252 million years ago, a new study found.

And dinosaurs weren’t the total losers they are sometimes made out to be: ... The biggest mass cataclysm of all time, called the end-Permian extinction, occurred 252 million years ago.

During the end-Permian extinction 95 percent of all species on Earth became extinct, compared to only 75 percent during the K-T when a large asteroid apparently caused the dinosaurs to disappear.

Comet Tied To a Mass Extinction. Sediments Show Earth Was Hit, Scientists Say. February 22, 2001. By Guy Gugliotta.

Long before T. rex, the Earth was dominated by super-carnivores stranger and more terrifying than anything dreamed up by Hollywood.

The biggest mass cataclysm of all time, called the end-Permian extinction, occurred 252 million years ago. Some 95% of species disappeared on land and at sea as a result of global warming — with ...

The most famous of these mass extinction events — when an asteroid slammed into Earth 66 million years ago, dooming the dinosaurs and many other species — is also the most recent. But ...