information:classification, stylistic:tone
Definitions and usage

In physical geography, the geographical delineation for the subregion is the portion of Africa south of the Cunene and Zambezi Rivers: Botswana, Eswatini, Lesotho, Namibia, South Africa, Zimbabwe, and the part of Mozambique that lies south of the Zambezi River. That definition is most often used in South Africa for natural sciences and particularly in guidebooks such as Roberts' Birds of Southern Africa, the Southern African Bird Atlas Project, and Mammals of the Southern African Subregion. It is not used in political, economic, or human geography contexts because the definition cuts Mozambique in two.