why do animals migrate
Each year groups of certain animals move from one place to another. Some may travel thousands of miles in the spring and then thousands of miles back in the fall. These long trips are called migrations. Why do animals migrate? Animals migrate with the change of the weather and the seasons. They migrate to find warmer weather, better food supplies, or a safe place to give birth to their young. How do animals know when and where to migrate? Different signals such as a change in weather, the length of the days, or the availability of food may signal to the animals that it is time to move.