Bighorn Sheep, Yellowstone January 2020. Bighorn Sheep Find A Way To Survive In The Freezing Winter Temperatures Of Yellowstone National Park

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animal bighorn canadensis chewing climbers cold cud curved elusive ewe fast footed grasses grazers herbivores hooves horns lamb lambs mammal montana mountain mountains national nose ovis park prey ram rump rut sharp sheep shy snow split sure ungulates usa vegetarians wary white wild wildlife winter yellowstone