Sci-Five | The Hindu Science Quiz: On Electroreception

Electroreception is the biological ability to perceive natural electrical stimuli.

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 Electroreception has been observed almost exclusively in aquatic or amphibious animals, since salt-water is a much better conductor than air, the currently known exceptions being echidnas, cockroaches and bees.

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Lampreys and the Condrostei (sharks, rays, sawfish, paddlefish, sturgeons) have electroreceptors, as do the sarcopterygian lobe-finned fishes, the coelacanths and lungfishes.

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Electroreception is used in electrolocation (detecting objects) and for electrocommunication (to attract mate and territorial display).

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Caterpillars are now among the few terrestrial animals known to have so-called electroreception, a new study has shown.

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