Hedgehogs are often hit by cars. Researchers say ultrasound could save them from extinction.
11 March 2026
Populations have plummeted by 30% over the last decade, leading to them being declared “near threatened”.
Researchers at the University of Oxford have demonstrated, for the first time, that hedgehogs can hear high-frequency ultrasound – and it could be used to deter them from roads.
Researchers at the University of Oxford have demonstrated, for the first time, that hedgehogs can hear high-frequency ultrasound – and it could be used to deter them from roads.