Plot Synopsis

This four-part special combines cinematic photo-real 3D graphics and leading-edge anatomy and paleontology to peel back the skin, muscles and bones to look deep inside the body of a dinosaur to reveal the secrets of these ultimate prehistoric survival machines. "Clash of the Dinosaurs" reveals some surprising insights into how the world's greatest animals really worked. Carnivores were engineered for the sole purpose of hunting and killing prey while plant-eaters evolved to protect themselves from the carnivores with some of best animal armor in history. Learn about: The Tyrannosaurus Rex, which could grow to be 18 feet tall and over 40 feet long, with jaws designed to tear flesh to shreds; The Ankylosaurus, at 30 feet long and four tons, which had a tanklike body with three layers of armor and a head so well protected by thick bone that not even an adult female T-Rex could inflict a deadly bite.