This coelurosaur, a likely ancestor of T Rex, was truly a "frightful lizard." At three tons and more than 30 feet in length, this meat eating dinosaur was the king of his late Cretaceous territory. In time, Daspletosaurus was earlier than the rex but likely hunted the same prey in much the same manner. It is likely that little competition existed between these two species, much like lions and leopards coexist on the same African plain. Like all tyrannosaurids, this meat-eating creature had only two arms, powerful jaws, and thick sharp teeth able to take very large bites out of its prey.