Ultrasound repellers could keep hedgehogs off roads, scientists hope | Wildlife
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 mammal’s drastic decline across Europe over recent decades. Researchers at the University of Oxford collaborated with colleagues…
