Here the alpha female of Yellowstone's Canyon pack feeds on an elk carcass provided by her pack. The gray wolf (Canis lupus) generally specializes in vulnerable individuals of large prey. Animals preferred as prey by Yellowstone's wolves include moose, white-tailed deer, elk, mule deer, bighorn sheep, and bison.
Although wolves primarily feed on medium to large sized ungulates, they are not fussy eaters. Smaller sized animals that may supplement the diet of wolves include marmots,...more »