Secret of hedgehog hearing discovered at far beyond human range – BBC

Secret of hedgehog hearing discovered at far beyond human range  BBCNew study suggests ultrasound could help save hedgehogs  University of OxfordUltrasound repellers could keep hedgehogs off roads, scientists hope  The GuardianHedgehogs can hear high-frequency ultrasound – that knowledge could help save them  The ConversationHedgehogs Could Avoid Extinction by Silent Ultrasound Installed on Cars to Prevent Roadkill  Good News Network