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The “shocking” tactic electric fish use to collectively sense the world

Posted on September 27, 2024 By admin
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Neuroscientist Nathan Sawtell has spent a lot of time studying a funky looking electric fish characterized by its long nose. The Gnathonemus petersii, or elephantnose fish, can send and decipher weak electric signals, which Sawtell hopes will help neuroscientists better understand how the brain pieces together information about the outside world.

But as Sawtell studied these electric critters, he noticed a pattern he couldn’t explain: the fish tend to organize themselves in a particular orientation.

“There would be a group of subordinates in a particular configuration at one end of the tank, and then a dominant fish at the other end. The dominant fish would swim in and break up the group, and they would scatter. A few seconds later, the group would coalesce and it would stay there for hours at a time in this stationary configuration,” Sawtell, who runs a lab at Columbia University’s Zuckerman Institute says.

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