This full-color book of marvelous mammals provides 30 hands-on activities to give interested children an overview of the wide varieties of mammals in their world. How big is a blue whale? Why does a sloth crawl from the safety of a tree to the ground once a week? How does a vampire bat feed? Young nature enthusiasts will find answers to these questions and learn all sorts of fascinating facts about mammals in this full-color, interactive book. Mammal...