Dinosaurs ruled the planet between 230 to 66 million years ago, although many other life forms had evolved well before their ...

Sleep may have evolved to help reduce DNA damage in nerve cells long before they became centralized in the brain, a study ...

These "total monsters of fishes" are extinct today, though new clues about their lives come from CT scans and their closest ...

By cutting into a tiny throat bone, Princeton's Chris Griffin showed that it belonged to an adult of a smaller tyrannosauroid ...

Red blood is the exception, not the rule. Evolution has painted it green, purple and white in animals that push physiology ...

This lopsided dentition, combined with the unusual ability to move the sides of their jaws independently, enables them to ...