Biologist confirms 200-year old theory about electric eels and how they attack

Alexander von Humboldt, 19th century naturalist and explorer, observed that electric eels actually leap from the water to strengthen their shock. But no one could ever confirm it. Vanderbilt biologist Kenneth Catania discovered his observation to be true after rigging an mannequin arm with LED lights and put it to the test. Eels leap from the water and make direct contact with a potential threat to incapacitate it with a stronger shock.

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