See how newborn mice develop, what the inside of a molehill looks like, what a whale has inside its mouth, how a chinchilla keeps its fur clean, and the only mammals that can fly in Eyewitness Mammal. Learn how to recognize mammal footprints, why some animals store food in their cheek pouches, why you are a mammal, how the porcupine frightens its enemies, and much, much more!