Continuing the fantastically successful 100 Facts series, this title takes an in depth look at one of the most powerful predators to have ever roamed the Earth. Travel back to the Cretaceous period and learn all about the T Rex's anatomy, find out how it killed its prey, and discover where in the world the biggest and most complete fossil specimens have been found. Exactly 100 numbered facts help children to track their progress as they make their way through the book.