A Black rhinoceros (Diceros bicornis), largely a solitary animal, feeding on thorny vegetation. It is a browser which is crepuscular in its movements. It can reach a height of over 1.5 metres and can weigh up to 1400 kilograms. The numbers of Black Rhinos in the wild have reduced considerably over the last 40 years due to poaching and the species is currently classified as Critically Endangered by the IUCN. Photographed in Etosha National Park, Namibia.