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.
Studying Spinosaurus has always been a challenge, especially after the original fossils were destroyed in a 1944 bombing raid on Nazi-controlled Munich.
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.