beak bird blue eye eye lash feather large lash lid ostrich african broad-mouthed close close-up cow creases endangered eye-lashes eye-lid flat-mouthed folds gray grazer grey heavy herbivore herbivorous hide lattice-structured mammal megafauna mother odd-toed-ungulate perissodactyl placid powerful rhino rhinoceros skin southern-white-rhinoceros square-lipped rhinoceros strong thick threatened tough white rhinoceros wide-lipped rhinoceros wrinkled wrinkles