Sharks use Earth's magnetic field as a GPS, FSU researchers say

Sharks use Earth’s magnetic field as a GPS, FSU researchers say
The study focused on bonnetheads but probably applies to any species, such as great whites, making cross-ocean journeys, according to the scientists.
 
 
Scientist Bryan Keller has conducted research on bonnethead sharks, like this one he found in September 2015 along the North Edisto River in South Carolina. [ AP ]
Updated 49 minutes ago
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 at Florida State University have found.
Researchers said their marine laboratory experiments with a small species of shark confirm long-held speculation that sharks use magnetic fields as aids to navigation — behavior observed in other marine animals such as sea turtles.

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