Life was hard in the Jurassic age, even for a large dinosaur at the top of the food chain. A few years ago, the most complete allosaurus skeleton ever found was discovered in Wyoming. The bones tell a surprisingly detailed biography of one indivdual dinosaur, Big Al,as he came to be known by the scientists who pieced together his story. The creators of Walking with Dinosaurs have vivdly recreated this 15-year story from birth to death using the same computer graphic and animaltronic techniques that stunned viewers throughout the world when they saw the original series.