Kids curious about topics that gross out grown-ups can learn about how animals use poop for defense, shelter, and even food in this nonfiction Level 2 Ready-to-Read! Ew...poop. Poop is gross. Poop is funny. But did you know poop is really important to lots of animals? Some use it to build homes, some for protection, and some even eat it! Find out more about the smellier side of the animal kingdom in this fact-filled early reader.