Sharks use Earth’s magnetic field for navigation, scientists say
Fox News
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.
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. "We know that sharks can respond to magnetic fields," Keller said. "We didn’t know that they detected it to use as an aid in navigation ... You have sharks that can travel 20,000 kilometers (12,427 miles) and end up in the same spot."
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