This book is part of a book series called New Look At .

There are 48 pages in this book. This book was published by National Geographic Society .

Don Lessem has written more than 50 books on dinosaurs and other animals for children and adults. He led the construction of the largest dinosaur skeleton, Argentinosaurus, and the largest meat-eating dinosaur, Gigantosaurus. Lessem was an adviser on the movie Jurassic Park , has hosted and written television documentaries, creates museum exhibitions on dinosaurs, and founded the two largest charities for dinosaur research.