Mackenzie valley wolf, Canadian timber wolf (Canis lupus occidentalis) running in the snow

animal animals body canadian canid canidae canids canis capped carnivora carnivore carnivores complete completely covered day daylight daytime during entire entirely exterior exteriors fauna full full body go goes going gray grey in kingdom length lupus mackenzie mammal mammalia mammalian mammalians mammals nature nobody occidentalis outdoor photo photos predator predators run running runs shot shots snow snowy tetrapod the timber timber valley vertebrata vertebrate vertebrates walk walking walks whole wholly wild wildlife winter wintertime wintery wintry wolf wolf wolves world