Hayden Valley, Yellowstone National Park, Wyoming
The cow elk had tried to lead her 2 calves across the Yellowstone River but they were hesitant to cross the deep and strong current. When she saw a couple of bisons entering the river on the opposite bank, she quickly left the water for the safety of the vegetation with her twin calves running after her.
cropped, color-balanced, sharpened
Nikon D200, Nikon 70-200mm lens at 82mm