The Mesozoic Era extinctions formed the world as we know it today. Read about what caused them and which animals survived.

Modern birds, the distant relatives of those ancient giants, carry within their DNA the story of that cataclysmic event.

From dire wolves to woolly mammoths, the idea of resurrecting extinct species has captured the public imagination. Colossal ...

Small fossils show mammals moved to the ground before the dinosaurs vanished. New plants changed habitats, giving better food and shelter.

But the biggest development in the seas was the appearance of whales in the mid- to late Paleogene. The huge animals evolved from land mammals that took to the seas. Meanwhile, smaller reptiles ...

Lyson at Denver Museum of Nature & Science in Denver, CO, and colleagues was titled, "Exceptional continental record of biotic recovery after the Cretaceous-Paleogene mass extinction." ...

Scientists have shocked the world by bringing back the extinct dire wolf species which disappeared from our planet more than 10,000 years ago, but the remarkable genetic engineering company behind ...

Along with sharks, many of these now-extinct species may have feasted on bottom-dwelling crustaceans ... layer of sediment or rock that geologists call the Cretaceous-Paleogene (K-Pg) boundary. The ...

For the first time ever, scientists say they have made a species de-extinct, bringing the dire wolf back into the world thousands of years after it died off. Colossal Biosciences, a company based ...