As many as 80% of the species living on Earth are still unidentified, according to a report from the World Economic Forum, ...

Three tooth marks on the rib indicate the whale was once severely bitten by a strong-jawed animal. Judging by the 6-centimeter (2.4 inch) spacing between tooth marks, scientists believe the attacker ...

By simulating the changes that occurred during the warm Pliocene epoch, researchers are trying to predict Earth’s future hundreds of years from now.

Nicolaus Steno/Wikimedia Commons And that’s exactly what happened at the end of the Pliocene. Marine animals, especially those living along the coasts, died off and left gaps in their place.

Nearly a third of the world's largest ocean species may have died during what researchers are calling the Pliocene marine megafauna extinction, which occurred 2-3 million years ago.

The Pliocene animals, plants and microbes all told the same story: They lived in a boreal-like forest ecosystem not quite like any that exists today. (The nearest modern example would be the Eastern ...

What Happens If the World Gets Too Hot for Animals to Survive? The last time climate was as warm as it will be in the next 50 to 100 years was 3 million years ago.

This fearsome 60-foot-long (18 meters) shark lived during the Miocene and Pliocene epochs, about 23 million to 2.6 million years ago. Wondering what other animals used to be giant?

As the authors explain, "This period, the Pliocene, is critical to understand the origins and evolution of Australia's unique modern animals.