Herd Of Elk With A Young Calf Nursing From Its Mother In The Grassy Field Of Yellowstone National Park In The USA

elk calf elk grazing yellowstone yellowstone national park wildlife national park herd male mammal antlers animals deer meadowpasture nat geo animal calf wilderness national geographic group brown habitat wild grassland hunt nature meadow head standing sucking usa moountains mother natural outdoors landscape national environment family field united states of america grassy behavior fur nursing young park milk planet