Note for the folks at home: Thorny cacti are the dominant life form of Maralal, in the semi-arid Samburu district of Kenya. Humans seem to be an afterthought, sprinkled in and around the bustling cactus metropolises. Growing thorns, in fact, seems to be the common adaptation among all the local plant life. Even the most innocent-looking baby bushes are riddled with sharp prongs just waiting to get lodged in the body of an unaware passer-by. The phrase "every rose has its thorn" holds little significance to a local, who would be surprised to find any flower without barbs.