Mackenzie Valley Wolf, Canadian Timber Wolf, largest wolf breed, 175 pounds, 7 feet long, essential for high altitude survival.
Eurasian wolf
Eurasian Wolf, a large, skinnier wolf, inhabits Western Europe, Russia, Scandinavia, and China, with coarse, short coats and up to 160 pounds.
Tundra wolf
Tundra Wolf, found in cold Russia, is a long, thin wolf with a thick coat, consuming caribou and bison for sustenance. Hunts weak animals within herds for energy conservation.
Alaskan interior wolf
The Alaskan Interior Wolf, also known as the Yukon Wolf, hunts in semi-cold Alaska and the Yukon, tag-teaming and weighing around 120 pounds.