Watch Clash of the Dinosaurs Online

For the first time in 65 million years, innovative imaging technology enables viewers to see deep inside the body of a dinosaur to reveal the secrets of these ultimate prehistoric survival machines. Combining cinematic photo-real 3d graphics and leading-edge anatomy and paleontology, "Clash of the Dinosaurs" is a four-part special that peels back the skin, muscles and bones to show how they survived in such a violent world.