Animals adapt, or change, to stay alive. Adaptation can happen in an animal's body or in the way it behaves. Some adaptations have taken place over many years, and others are caused by changing habitats due to the actions of people. This informative book shows animal adaptations due to changing climates, habitat changes, and opportunistic behaviors that help animals survive, such as the creation of new species. The coywolf, for example, is a new species. It is part coyote and part wolf, and has a much greater chance of survival than either of the animals that created it.