Mouth and muzzle of white rhinoceros grazing on short grass, close up

white rhinoceros rhinoceros rhino pachyderm grazing game reserve big five wildlife toes mammal africa endangered south africa herbivore thick skin ceratotherium grazer snout wrinkles animal savanna african horn horned sniffing eating closeup savannah nostril mouth olfactory grass snot wrinkled plant eater lips dirt keratin beast ground welgevonden squarelipped