Continued.. The Hadza continue to live the same sustainable way of life as their ancestors, which had shown little modification until the past 100 years. Their click language is unrelated to any other language in the world. Although they are often associated to the San of Botswana and Namibia they are not related to any population. Under pressure from increasing neighbouring groups encroaching on their Hadza land and affected by the impact of tourism and safari hunting, their lifestyle is under serious threat.