the black rhinoceros or hook-lipped rhinoceros diceros bicornis

africa african animal beautiful bicornis big big5 black ceratotherium conservation conserve cute danger dangerous defense diceros eastern ecotour endangered environment grey head herbivore hook hooklipped horn imposing lipped mammal native natural nature park portrait prehistoric preservation protected reserve rhino rhinoceros rhinocerotidae safari savanna simum southern species stand survive threatened unicorns white wild wilderness wildlife