"Playful, but filled with information, this book takes poop out of the sewers and into the scientific community where it belongs." —The Horn BookHippos navigate by it, sloths keep in touch through it, dung beetles eat it . . . and most grown-ups would rather not mention it. But scientists who study animal feces find out all sorts of things, such as the number of insects a bat eats or just how a T. rex devoured a triceratops 70 million years ago. Poop is an excellent prototype for recycling and perhaps the most useful stuff on Earth. Take a peek at Poop and find out what it’s for, where it goes, and how much we can learn from it.Back matter includes an index and a glossary.