Photo: Sharks Repelled by Metal That Creates Electric Field

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Sandbar and tiger sharks lie on a boat deck after they were snagged as bycatch on longline fishing gear. The lines catch an estimated 11 to 13 million unwanted sharks each year.

Now researchers have shown that young sandbar sharks avoid bait near an electrochemical alloy, a find that could lead to longlines laced with the shark-repellent metal.

Photograph by Jeff Rotman/Getty Images

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