Take a walk with some of the most ferocious beasts of prehistoric times. These wild creatures come to life in front of your eyes with a little help from 3-D technology. Use the 3-D glasses to see Gastornis, Andrewsarchus, and Entelodont. This oversize book features an animal on each page, complete with stats - Name, Pronunciation, Total Length, Height to Head, Diet, and Description. These bizarre animals look nothing like their living relatives. The Entelodont is a relative of the pig but bears no resemblance to the portly porker we know today. Much more ruthless and aggressive, it preyed on smaller mammals. The Chalicothere was a knuckle-walking plant eater that was mostly peaceful - unless it had to protect its young. This odd-looking animal's long, curved claws would surely dismay potential predators. This awesome survey of prehistoric animals is based on the Discovery Channel special 'Walking with Prehistoric Beasts.'