Scientists discover hedgehogs hear ultrasound, opening the possibility of warning sounds that keep them away from roads.

Scientists have found hedgehogs can hear higher pitched sounds than humans, cats and dogs, and hope the discovery could help protect them ...

A sound too high for you to hear may one day help keep hedgehogs off the road. That possibility comes from a new study in Biology Letters reporting that European hedgehogs can hear ultrasound, with ...

Researchers played a sountrack to hedgehogs to identify the frequency of sounds they can hear ...