Dinosaurs were all wiped out, A long way back in history. No one knows quite how or why, Now this book solves the mystery ...If you've ever wondered why dinosaurs became extinct, well here's the surprising answer. They were wiped out in a mighty war for underpants supremacy! Hear T Rex roar as he tries to get his claws on a pair of Man's pants, starting a dinosaur fight of epic proportions! Little ones will love this noisy new edition of the phenomenally successful picture book.