How do wolves stay warm outside all winter?
Wolves have two coats of fur. There is a thick, downy undercoat which is used to for insulation. There is an overcoat of long, guard hairs which repels water and snow. The undercoat sheds in the spring and grows back again in the fall and winter. Wolves can adapt to very cold climates-they keep warm by curling themselves in a ball and tucking their muzzle in their tail.