Electric Eels Can Paralyze Prey

Photo via National Geographic

We’ve seen eel art before, but actually don’t know much about these fish or their biology. Electric eels are even more fascinating for obvious reasons, but of course are also that much more mysterious to us. National Geographic science writer Ed Yong fills us in with the help of Vanderbilt University biologist Ken Catania below:

A fish swims in the Amazon, amid murky water and overgrown vegetation. It is concealed, but it’s not safe. Suddenly, two rapid bursts of electricity course through the water, activating the neurons that control the fish’s muscles. It twitches, giving away its position, and dooming itself. Now, it gets zapped by a continuous volley of electric pulses. All its muscles contract and its body stiffens. It can’t escape; it can’t even move. Its attacker—an electric eel—moves in for the kill.

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