Knifefish (IMAGE)

PLOS

Knifefish

Caption

A computer model of the knifefish illustrates the estimated SV for active sensing of prey (red) and stopping MV (blue). The backdrop shows a color map of the fish's simulated self-generated electric field. SV barely exceeds the stopping MV, revealing that the fish invests just enough energy into active sensing to detect prey in time to stop.

Credit

MacIver et al.

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