Ultrasound repellers could keep hedgehogs off roads, scientists hope

Ultrasound repellers could keep hedgehogs off roads, scientists hope

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 in Denmark to test […]

Read More

Beautiful Tortoiseshell Butterfly Recolonizes England Decades After Elm Disease Had Eliminated it

Beautiful Tortoiseshell Butterfly Recolonizes England Decades After Elm Disease Had Eliminated it

The butterfly-mad British are celebrating what seems to be a permanent return of this large and spectacular species after Dutch elm disease killed it off from the island. Unlike the small tortoiseshell butterfly, the large tortoiseshell butterfly hasn’t been a resident of the UK since the 1960s, but after several years of continuous widespread sightings, […]

Read More