How do animals survive in planet Earth's most extreme regions? Snow, ice, and subzero temps make the North and South Poles nearly impossible places to live. But several animals from musk oxen to penguins call these regions home. Find out how their amazing behaviors and body parts have adapted to these harsh conditions. With full-color photographs and engaging, easy-to-read text, Amazing Animal Adaptations are perfect for pre-reader and early reader nonfiction fans.