(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 was the ...

Everyone knows that dinosaurs are extinct, and most people have some idea about how it might have occurred. But the exact periods in history when it happened are less well known. Was it a single ...

A nearly complete 10-metre-long Machimosaurus rex fossil discovered just beneath the Sahara sands in Tunisia is reshaping scientists’ understanding of marine reptile survival. The find, dating to ...

WASHINGTON — A steep decline in birds, butterflies and native plants in Britain supports the theory that humans are pushing the natural world into the Earth's sixth big extinction event and the future ...

We all know the most popular theory about dinosaur extinction, which is a massive asteroid hitting Earth and wiping out nearly everything. However, over the years, scientists, writers, and even ...

couple of Brachiosaurus altithorax and a flock of Pterosaurs in a scenic Late Jurassic landscape© dottedhippo/iStock via Getty Images The Jurassic Period is one of the three prehistoric geological ...