An illustration of an arctic fox skull
Date 1890
Source A monograph of the canidae by St. George Mivart, F.R.S, published by Alere Flammam. 1890
Author St. George Mivart
Source: https://commons.wikimedia.org/wiki/File:Lagopusskull.jpg

The Arctic fox (Vulpes lagopus), also known as the white fox, polar fox, or snow fox, is a small fox native to the Arctic regions of the Northern Hemisphere and common throughout the Arctic tundra biome. It is well adapted to living in cold environments. It has a deep thick fur which is brown in summer and white in winter.