How do some animals navigate using the Earth’s magnetic field?

Many animals, including birds, sea turtles, and some mammals, use Earth’s magnetic field for navigation through a process called magnetoreception. They have specialised cells containing magnetite, a magnetic mineral, in their brains or beaks. These cells detect the Earth’s magnetic field and help the animals determine direction and location. Some species, like migratory birds, also rely on solar and stellar cues to navigate long distances, using Earth’s magnetic field as a backup system.