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Sharks, Stringrays, and Chimeara All Possess an Organ That Allows Them to Detect Electric Potential

Shark Facts

Sharks, stringrays, and chimeara all possess an electroreceptive organ called an ampullae of Lorenzini.  This organ gives them the ability to detect even small variations in electric potential.  They can use this to detect magnetic fields, among other things. Suddenly sharks with lasers attached to their heads seems even more dangerous. Reference

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