Arctic Fox, Vulpes lagopus, also known as the White Fox or Snow Fox, on the tundra at Polar Bear Point, Wapusk National Park, Churchill, Manitoba, Canada, North America.
The fox ran at high speed across the ice, then stopped and looked for just a moment then turned his head ready to take off again. Just long enough for 2 shots.
(This is a colour photograph.)
Canon 500D, zoom lens.
(Featured in A Wilderness Somewhere, & Others.)