Learn all about over fifty different types of dinosaurs in this fact-filled book. Complete with meticulously detailed illustrations of each dinosaur, Dinosaur Discovery contains information about the origins of dinosaurs, the continents they roamed, and the theories which explain why they suddenly died out 65 million years ago. Find out what life was like for these prehistoric rulers of the earth! Daniel Cohen has written 150 nonfiction books, including Where to Find Dinosaurs Today. He lives in Cape May Court House, New Jersey. Russell Farrell's artwork has appeared on numerous book covers. He lies in Woodbury Heights, New Jersey.