Bison standing in a grassy enclosure viewed through a fence

bison standing grassy enclosure wildlife animal nature habitat conservation zoological exhibit mammal outdoor species environment fauna observation captivity viewing animal behavior sanctuary zoology large mammal natural habitat zoo environment powerful herbivore tranquil ecosystem daytime peaceful animal kingdom fenced area grazing bison behavior bison enclosure grassy field wooden fence animal conservation brown fur horns hooves large size muscular grazing behavior herbivorous tail hump thick coat