How some fish use electrical signals to navigate and hunt

How do fish make electricity? - Eleanor Nelsen · 5:15 · Video: TED-Ed · Watch at the source

In short: In the darkness of underwater environments, light is often scarce. This video explores how nearly 350 species of fish use specialized anatomical structures to generate and detect electricity for survival.

Eleanor Nelsen explains the biological mechanisms that allow electric fish to produce electrical discharges. Beyond simple movement, these signals serve vital functions: they allow fish to communicate, navigate through murky waters, locate prey, and in some instances, stun their targets.

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