Whats Behind Animal Migration?
Migration is the mass movement of large groups of animals or people from one place to another. It is often because conditions have changed so that staying where they were will make life difficult. Canada Goose in Atlantic Coast Migration Route. Photo courtesy Federal Wildlife Service Hibernation is staying in the same place and sleeping through the worst conditions. Many small bodied mammals tend to deal with the seasonal changes by eating so much that they put on a layer of fat and by hibernating in the winter. Aside from certain tropical and evergreen forest areas where migrations are relatively uncommon, a large number of both aquatic and terrestrial species move from one habitat to another at some time during their lives.
