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 ...

The sixth mass extinction is not a worry for the future. It's happening now, much faster than previously expected, and it's entirely our fault, according to a study published Monday.

A study of fossils from the Permian-Triassic extinction event 252 million years ago shows that forests in many parts of the ...

As climate change threatens tropical forests, a new study shows how the loss of those forests can be devastating to life on ...

(CNN) — A cataclysm engulfed the planet some 252 million years ago, wiping out more than 90% of all life. Known as the Great Dying, the mass extinction that ended the Permian geological period ...

The end-Permian mass extinction was the deadliest event in Earth’s history. Also called the Great Dying, it is thought to have nearly wiped out all life on Earth 252 million years ago. Yet ...

For example, within approximately 3 million to 5 million years of the mass extinction, surviving bird lineages tended to develop smaller body sizes. They also changed how they developed as ...

The mass extinction just before the dinosaurs took over may have been caused by extreme cold rather than extreme warmth like originally thought. Stock image of a volcano (main) and dinosaurs (inset).

the geologic record, trying to correlate known mass extinctions to meteor strikes. ... Finding a layer of earth in Colorado, for example, and finding that same layer in Australia is no simple task.

Deeper in time, a mass extinction event that ended the Devonian Period, a geological era when life thrived on land for the first time, was also attributed to a hyperthermal event likely triggered ...