Why do some animals migrate to different places?

Some animals move far away. They go because food gets hard to find. Some look for warm sun. Some need safe baby places. Then they can eat and grow.

Some animals migrate because the place they live changes. It may get too cold, too dry, or have less food. So they travel to a better place to eat, stay warm, or have babies. It is like moving from a chilly room to a sunny room when you feel cold.

Animals migrate when moving helps them survive. In one place, winter may bring cold weather and little food, so birds fly to warmer places with more insects or seeds. Some animals travel to safe spots to have babies, or follow rain so they can find fresh plants. A surprising fun fact: monarch butterflies can fly thousands of miles, even though each one is as light as a paper clip.