The San are an indigenous people of Africa, mainly found in Botswana, Namibia, Angola, and South Africa. Once nomadic hunters and gatherers of wild food in desolate areas like the Kalahari Desert of southwest Africa, most of the San now live in settlements and work on cattle ranches or farms. The San have a rich folklore, are skilled in drawing, and have a remarkably complex language characterized by the use of clicks. What plant used by the San has been patented, and why? Discuss
Source: The Free Dictionary