Dung beetles eat poop. Skunks spray smelly liquid. Snails leave slimy trails. In this series, readers will learn about the animal kingdom's grossest animal behaviors, diets, and traits and how they help each animal, whether it's to scare off predators, find a mate, or find food. A diagram demonstrating the reasons for gross adaptations supplements the content, while a picture glossary reinforces new vocabulary. Bright, full-color photographs and photo labels complement the carefully leveled text to make reading for understanding easy and fun. Each title includes reading tips for teachers and parents, a table of contents, and an index. This series is also available in a Spanish edition.