Animals that live in the tundra have special adaptations that allow them survive the extreme temperatures and conditions that are present in tundra. Animals are adapted to handle long, cold winters and to breed and raise young quickly in the summer. Animals such as mammals and birds also have additional insulation from fat. Many animals hibernate during the winter because food is not abundant. Another alternative is to migrate south in the winter, like birds do. A good example of an animal with special adaptations is the arctic fox. The arctic fox has short ears and a short, round body with a thick coat to minimize the amount of skin exposed to the frigid air.