How Do Birds Navigate Thousands of Miles Without Getting Lost? #Video

Birds cross oceans, continents, and even the entire planet—without maps, GPS, or directions. So how do they always seem to know where to go? In this video, we uncover the hidden navigation systems birds use to travel thousands of miles, from reading the stars and the sun to sensing Earth’s magnetic field itself. The science is stranger, smarter, and more incredible than you might expect—and scientists are still uncovering how it all works.