Some mammals, like dolphins, swim. Others walk, like people! But only one kind of mammal flies--the bat! This book is full of information about this amazing animal group for young readers to discover. From the characteristics of what makes a mammal a mammal to life cycles, the main content introduces important science curricula concepts. But nothing livens up science content like activities! Each section highlighting an animal also includes an origami project to create it. The instructions are complete with pictures of each folding step along the way.