Mature & young Musk-ox bulls and cows in a defensive lineup during winter on the Seward Peninsula near Nome, Alaska, USA

outdoor cow animal mammal grass cattle bovine field bull horn sky herd brown deer sheep livestock dairy cow grazing goat ox snow yak lush standing elephant herding musk ox bear wildlife horse tree hill plant hillside forest rhinoceros looking white rhinoceros pig sumatran rhinoceros indian rhinoceros terrestrial animal elephants and mammoths hippopotamus indian elephant sunset savanna grassy sun group safari background green camel ecoregion sunrise distance clouds pasture day several antelope antler reindeer elk barren ground caribou white-tailed deer black tailed deer fawn roe deer buck farm bison texas longhorn highland