Wildlife photography of wolf packmates playfully greeting each other after feeding on a cold Winter morning in Yellowstone National Park

In the falling snow of a bitter cold Yellowstone Winter morning, wolves of the Wapiti Pack in Yellowstone National Park greet each other with wagging tails and full bellies. Often striking unwarranted fear and hate in humans, these wolves demonstrate the gentle and nurturing behavior typical of intimate moments among these wonderfully complex canines.