In this clip from Assignment Discovery on Discovery Channel, we learn about the force of a T-rex bite. Scientists simulate the Dinosaur tooth piercing a bone.
One of the most deadly weapons ever forged by nature, Tyrannosaurus jaws were so powerfully muscled that the creature's head and neck weighed as much as 1,000 pounds.
A Tyrannosaurus rex goes head-to-head with a prehistoric dragon. The dragon is outmatched by the T. rex's size, but it's got a few tricks up its sleeve.