"What makes a frog an amphibian but a snake a reptile? Although they share some characteristics, these two animal classes are different and are often confused. What kind of skin covering do the animals have? How do they stay warm? How do they get the oxygen they need to breathe? How are they born? Following in the footsteps of Polar Bears and Penguins, Clouds, and Trees, this latest in Arbordale's Compare and Contrast series has children pondering the similarities and differences between the two animal classes through stunning photographs and simple, non-fiction text"--

Award-winning author Katharine Hall is a life-long nature lover and avid reader. She hopes the Compare and Contrast series will help children use critical thinking skills to explore and learn about the natural world around them. In addition to Mammals, Katharine's other titles in this series include Polar Bears and Penguins (NSTA/CBC Outstanding Science Trade Book and IRA Children's and Young Adults' Book Award for Primary Non-Fiction), Amphibians and Reptiles, Clouds, and Trees. Katharine and her husband live in South Carolina with their dogs and cats.