Which dinosaur will win each battle? Find out in this unique, mix-and-match flip book What would happen if an Iguanodon and a Velociraptor went head to head? Find out in Discovery Head to Head: Dinosaurs This unique book allows kids to flip the two stacks of pages to put (some unlikely) dinosaur pairings in battle. Each dinosaur is given a score based on criteria such as speed and intelligence, and the dinosaur with the higher...