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Sharks use Earth’s magnetic field as ‘GPS’ guide: study The Guardian, MIAMI, Florida Scientists in Florida have concluded that sharks possess an internal navigation system similar to GPS that allows them to use Earth’s magnetic forces to travel long distances with accuracy. The researchers from Florida State University made the discovery by subjecting 20 bonnethead sharks, part of the hammerhead family, to “magnetic displacement” exercises that replicated geographical locations hundreds of kilometers from where they were captured. When the sharks were exposed to magnetic cues emul...

Sharks use the Earth’s magnetic field as a sort of natural GPS to navigate journeys that take them great distances across the world’s oceans, scientists have found. Researchers said their marine laboratory experiments with a small species of shark confirmed long-held speculation that sharks use magnetic fields as aids to navigation — behaviour observed in other marine animals such as sea turtles. Their study, published in the journal Current Biology, also shed light on why sharks are able to traverse seas and find their way back to feed, breed and give birth, one of the study authors sa...

Their study, published this month in the journal Current Biology, also sheds light on why sharks are able to traverse seas and find their way back to feed, breed and give birth, said marine policy specialist Bryan Keller, one of the study authors.

Sharks use the Earth’s magnetic field as a sort of natural GPS to navigate journeys that take them great distances across the world’s oceans, scientists have found. Researchers said their marine laboratory experiments with a small species of shark confirmed long-held speculation that sharks use magnetic fields as aids to navigation — behaviour observed in other marine animals such as sea turtles. Their study, published in the journal Current Biology, also shed light on why sharks are able to traverse seas and find their way back to feed, breed and give birth, one of the study authors sa...

The question about how sharks perform long-distance migrations has intrigued researchers for years.