There are six species of Baboon: 
1. the Olive Baboon (Equatorial Africa), 
2. the Yellow Baboon (Eastern Africa),  
3. the Chacma Baboon (Southern Africa),
4. the Kinda Baboon (Angola, Congo, Zambia),
5. the Guinea Baboon (Western Africa), and 
6. the Hamadryas Baboon (Ethiopia, Somalia and Yemen).

The largest is the Chacma Baboon (up to 1.2m) and the smallest is the Kinda Baboon (up to 50cm).
South Africa has the Chacma Baboon, the largest of the five baboon species.

First 4 photos: Madikwe Game Reserve, South Africa, 21 & 23 November 2005
Last photo: Kruger National Park, South Africa, 16 September 1997