Geographical distribution of baboons. Distribution based on the map in Kingdon , revised in accordance with Sarmiento  and Galat-Luong et al. . Sampling sites are indicated by coloured points and labelled with a three-letter code according to Additional file 1.
Zinner et al. BMC Evolutionary Biology 2009 9:83 doi:10.1186/1471-2148-9-83