Researchers have discovered that hedgehogs can hear ultrasound, a surprising ability that could help protect them from cars. Since road traffic kills large numbers of hedgehogs, scientists believe ...

Millions of hedgehogs die as they cross the roads, but a discovery is paving the way for a warning that might stop them crossing at dangerous times.

Meet the European hedgehog ( Erinaceus europaeus ), small nocturnal insectivores that turn into a spiny ball of death when they feel threatened. Unfortunately, the mammals are rapidly declining.

Researchers at the University of Oxford have suggested that ultrasound-repellers could help reduce hedgehog deaths caused by cars. The proposal is based on new findings, published in Biology Letters, ...

The proposal is based on their findings which show for the first time that hedgehogs can hear high-frequency ultrasound.