Electroreception in Caterpillars | 29 May 2024

Recent research revealed that caterpillars can detect electric fields through setae on their bodies, an adaptation known as electroreception.

This sensory ability is predominantly found in aquatic and amphibious species but has now been observed in these terrestrial insects.
Electroreception enables caterpillars to sense approaching predators by detecting oscillating electric fields generated by the flapping wings of insects like wasps.
This sensory ability may have evolved as an evolutionary response to intense predation, complementing other sensory defences caterpillars employ.
Potential interference from "sensory pollution," such as electromagnetic frequencies from power cables, could disrupt this delicate sensing mechanism, posing a new challenge to their survival.