Why do caribou migrate?
Some animals stay in one area their entire life. Others, like caribou, migrate on long journeys. Caribou migrate between summer and winter ranges. Their summer range provides nutritious food that helps the new calves and the other caribou grow healthy and fat before winter. But the summer range is a harsh and windy place during winter, so the caribou move to a winter range where conditions (weather, food, snow cover) are more agreeable.
