The hunter-gatherers of southern Africa known as 'Bushmen' or 'San' are not one single ethnic group, but several. They speak a diverse variety of languages, and have many different settlement patterns, kinship systems and economic practices. The fact that we think of them as a unity is not as strange as it may seem, for they share a common origin: they are an original hunter-gatherer population of southern Africa with a history of many thousands of...