The Okavango River is a river in southwest Africa. It is the fourth-longest river system in southern Africa, running southeastward for 1,600 km (990 mi). It begins in Angola, where it is known as the Cubango River. Further south it forms part of the border between Angola and Namibia, and then flows into Botswana, draining into the Moremi Game Reserve.
The black-faced impala (Aepyceros melampus petersi) isn't found anywhere else in the world other than Etosha, Namibia. In the early 1970s, 200 black-faced impala were moved from the Kunene Region, where they were almost extinct, to Etosha. Forty years later, the population of black faced impala in Etosha is thriving, and at least 23 game farms have established small populations. by Rosemary Walden