[Lee Stewart]

A meat-eating dinosaur that was one of the last to walk Earth replaced its teeth as often as modern sharks do, scientists have discovered. Majungasaurus, which lived between 66 and 70 million years ago, was found to grow new teeth about once every two months. That is up to 13 times faster than some other carnivorous dinosaurs, such as Tyrannosaurus Rex, which took about two years to grow new teeth.