Animal World, pp. 11, Saddleback Educational Publishing,2008, ISBN 978-1-59905-232-8, ... Warm-blooded animals have the ability to maintain a constant body temperature in any kind of environment. Warm-blooded animals are also known as endotherms. Birds and mammals are examples of warm-blooded animals ...
Warm-Blooded Or Cold-Blooded?, Bobbie Kalman, pp. 11, Crabtree Publishing Company, 2008, ISBN 978-0-7787-3281-5, ... Warm-blooded animals are able to warm their bodies by shivering when they are cold. When you shiver, your body shakes to warm you up ...
