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Oxford and Copenhagen scientists find hedgehogs hear up to 85kHz, aiding efforts to protect them from vehicles and lawnmowers using ultrasonic repellents.
Scientists at the University of Oxford and University of Copenhagen have found European hedgehogs can hear sounds up to 85kHz, far beyond human hearing, due to unique ear anatomy similar to echolocating bats.
The discovery, based on brainstem responses and micro-CT scans, could lead to ultrasonic repellents to prevent hedgehog deaths from vehicles, lawnmowers, and other dangers.
With hedgehogs declining rapidly and one in three dying on roads, researchers aim to develop devices that deter them without harming humans or pets.
The findings suggest hedgehogs may use ultrasound for communication, offering new avenues for conservation.
Científicos de Oxford y Copenhague descubrieron que los erizos oyen hasta 85 kHz, lo que ayuda a los esfuerzos para protegerlos de los vehículos y las cortadoras de césped que utilizan repelentes ultrasónicos.