Animal migrations are large-scale movements of animals from one region to another, often in search of food, breeding grounds, or better living conditions. These migrations can occur seasonally, such as the journey of monarch butterflies from North America to Mexico, or they can be triggered by environmental changes, like the movement of caribou across the Arctic tundra. Many species, including birds, fish, and mammals, rely on migration to survive. During these migrations, animals may travel thousands of miles, navigating using natural cues like the sun, stars, and Earth's magnetic field. This remarkable behavior is essential for maintaining healthy ecosystems.