Includes index.

Where do animals live? -- Seasons change -- Leaving winter behind -- Birds that migrate -- Flying from pole to pole -- Tiny wings fly far -- Migration in the north -- Looking for fresh grasses -- Elephants on the move! -- Migrating to lay eggs -- Alligators on land -- Sea turtle journeys -- Migrating whales -- How do they know?

When seasons change, it becomes difficult for some animals to stay in their habitats and they migrate to another habitat.