Science Photo Library Alligators have blood-vessel ... By examining fossils and 3-D images of Tyrannosaurus rex's skull, the scientists discovered that the dinosaur had similar holes.

Tyrannosaurus rex was one of the most ferocious predators to ever walk the Earth. With a massive body, sharp teeth, and jaws so powerful they could crush a car, this famous carnivore dominated the ...

rex lived, Canada was covered with a tropical forest and had an inland sea that stretched from coast to coast. Today, our prairies are a treasure trove of dinosaur fossils. Photo: Royal ...