All animals must move. Whether on the hunt for something to eat, on the run from being eaten, or in search of a mate or a safe place to live, their lives depend on marvelous motion. In this fascinating introduction to biomechanics, seasoned non-fiction writer Galadriel Watson draws on biology, physics, and other sciences to show readers the incredible ways a variety of creatures move to meet their everyday needs--and overcome the physical forces working against them.