portrait, black and white photo of black rhinoceros, diceros bicornis, drinking from the waterhole in night. rhino is reflected in

africa african and animal art artistic background beauty bicornis big black cartoon dangerous diceros endangered etosha graphic hooklipped horn horned illustration isolated mammal monochrome namibia national nature night nobody painting park photography poaching portrait protection reflection rhino rhinoceros safari silhouette sketch strength strong symbol vintage waterhole white wild wilderness wildlife zoo