Foxes' skulls are specially adapted for diving into snow

GOLAHURA

says Sunghwan Jung at Cornell University in New York

In cold climates

where small rodents live deep under the snow

red foxes Vulpes vulpes and Arctic foxes Vulpes lagopus

have a specialised hunting technique known as mousing

To learn more about why red and Arctic foxes are so adept at snow-diving

Jung and his colleagues scanned the skulls of 13 fox species

as well as those of other mammals

such as lynx

pumas