The animal known for its ability to navigate using the Earth's magnetic field is the sea turtle, particularly the loggerhead turtle. These turtles exhibit remarkable navigation skills during their long migrations, often traveling thousands of miles across the ocean to reach specific nesting sites. Research suggests that sea turtles possess magnetoreception, which allows them to detect the Earth's magnetic fields and use this information to orient themselves and navigate accurately. This skill is critical for their survival and reproduction, as it helps them find suitable habitats and return to the same nesting locations year after year, demonstrating their impressive natural abilities.