Sharks and Other Animals Use Earth's Magnetic Field to Navigate
Shark species have an uncanny ability to find their way back to the same feeding grounds every year — even areas thousands of miles away. According to a study published Thursday, that's because sharks have a superior navigational tool at their disposal: They can orient themselves using Earth's magnetic field. They're far from the only animals to do so. Birds, whales, and many other species use the same sixth sense to plot their migrations. Bryan Keller, a biologist at Florida State University who co-authored the new study, likens this sense to "having an 'internal GPS.'" Newsletter Loading ...