Evolution

The Tibetan fox (Vulpes ferrilata) is a small fox that lives on the Tibetan plain (2500-5200m or 8200-17,000ft elevation). Not much is known about this fox because it lives in such a remote area of the world. This fox mates for life and the couple raise kids together. They are not particularly territorial, but they are almost always found where there are black-lipped pikas (Ochotona curzoniae), the main prey of the Tibetan fox. Scientists are not sure why the Tibetan fox has such a strange silhouette, but some speculate it may help it blend into its environment when stalking the vigilant pika.

Photo courtesy of:

http://www.canids.org/species/Vulpes_ferrilata.htm

Sources:

http://www.canids.org/species/Vulpes_ferrilata.htm

http://www.bbc.co.uk/nature/life/Tibetan_Sand_Fox

http://www.iucnredlist.org/details/41258/0