Hadza is a language of Tanzania. It has only about 200 speakers. Hadza is classified as a Khoisan language by Greenberg (1976), along with Sandawe, its neighbouring language. The reasons for this classification include the presence of clicks in the language and a relatively small number of proposed cognates with the better-known Khoisan languages. Because of its seemingly typological nature, this classification is disputed, but relatively little research has been undertaken as to what the genetic affiliation of Hadza and Sandawe might be.
Sands, Bonny E. (1998) 'The Linguistic Relationship between Hadza and Khoisan' In Schladt, Matthias (ed.) Language, Identity, and Conceptualization among the Khoisan (Quellen zur Khoisan-Forschung Vol. 15), Köln: Rüdiger Köppe, 265-283.
Hadza fathers contribute more care to their own children than to their step children and they appear to adjust their parental effort in response to mating opportunities.
Hadza economy was never on a cash basis, hardly even barter, for the Hadza were used to sharing freely.
Hadza people obtain the remaining 20 percent of their food from meat brought back to camp and wild bee honey taken from hives in the bush.
The Hadza still live in bands, hunting with bows and arrows, gathering roots, tubers and wild fruits, as man lived 10,000 years ago.
The settling program was a failure as the Hadza, who had always been hunters, lacked the knowledge or inclination to be successful at agriculture.
The Hadza speak a click-language, they don't have chiefs, houses, or a political system, and they roam the land in small bands with little sense of tribe.