Ultrasound repellers could keep hedgehogs off roads, scientists hope
via sciencedirect.com
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Study shows animals hear very high frequencies, making it possible to design a deterrent to cut deaths Hedgehogs have been discovered to hear high-frequency ultrasound, raising hopes that they could be deterred from dangerous roads with ultrasound repellers. Vehicles are estimated to kill up to one in three hedgehogs, a big factor in the much-loved […]