Learn all about these epic prehistoric creatures and decide who will emerge victorious in this book that comes with two replica teeth!Prehistoric beasts face-off against each other in this epic book of unbelievable showdowns! Packed with images of and information about the amazing animals that ruled earth millions of years ago, this book is perfect for fans of dinosaurs and other ancient creatures alike. After you read all about them, decide who will win in a prehistoric face-off! It also comes with a replica mosasaurus tooth and a replica T.rex tooth to add to your collection!