The tool is particularly effective when employed by skilled traditional hunters, such as San bushmen in Botswana, some of whom were the first to use it.
Studies of Kalahari Bushmen and other nomadic groups show that hunter-gatherers, even in the most inhospitable landscapes, typically spend less than twenty hours a week obtaining food.
Namibia itself is an uneasy mixture of Africa and Europe, where the 1.5 million sons and daughters of Bushmen, Germans and Brits, try to live side by side.