How do animals navigate during migration?

Animals use a variety of navigational tools during migration, including Earth’s magnetic field, the position of the Sun or stars, and environmental landmarks. For example, birds like Arctic terns rely on celestial navigation, while sea turtles use magnetic cues to find their way across oceans. Some animals, like salmon, also detect chemical signals in water to locate their spawning grounds. These diverse strategies ensure successful long-distance travel to breeding, feeding, or overwintering areas.