Scientists have discovered the oldest known animal with saber teeth: a predator that lived 270 million years ago. This animal, from before the age of the dinosaurs, was a dog-like creature that was ...

Hunting is considered critical to human evolution by many researchers who believe that several characteristics that distinguish humans from our closest living relatives, the apes, may have partly ...

A new study has for the first time illuminated the evolutionary history of the bizarre anti-predator defense—the praying mantis startle display—and suggests that the element of surprise may be key to ...