Shows how creatures throughout the animal world, including humans, deal with the products of digestion. Parents need to know that children will find this book immensely funny and will love to point out the excrement from each animal. -Common Sense Media Turtleback binding is a highly durable alternative to a hardcover or paperback book. The comprehensive cover reinforcement process will drastically combat wear and tear, keeping your favorite books in great condition for years to come! Turtleback books are ideal for any reader, or for use in schools or libraries.