From long, sharp claws to extra bones in their necks that allow them to turn their heads 270 degrees, three-toed sloths have many special adaptations that suit them well to their arboreal homes. This engaging volume divulges some of the evolutionary tricks these animals have developed over time to help them survive in their habitats. Easy-to-follow text and captivating photographs accompanied by thoughtful captions make this book a high-energy ride about some very low-energy creatures.