The Permian extinction reminds him of Agatha Christie's Murder on the Orient Express, in which a corpse with 12 knife wounds is discovered on a train. Twelve different killers conspired to slay ...

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

Roughly 252 million years ago, Earth experienced its deadliest known extinction. Known as the Permian–Triassic Mass ...

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?

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.

The end-Permian extinction, tooking place about 250 million years ago, eliminated more than 90 percent of Earth's marine species and 75 percent of terrestrial species.

The marine version of the end-Permian extinction took up 100,000 years out of the entire 3,800,000,000 years that life has existed--the equivalent to 14 minutes out of a whole year.

During its approximately 4.5 billion years of existence, the Earth has experienced five major mass extinction events that are responsible for reshaping the planet both physically and biologically. The ...

Challenging the prevailing view of total collapse. The end-Permian mass extinction, which happened approximately 252 million years ago, saw more than 80% of marine life perish, and was the worst ...