Hadza's a language isolate spoken by fewer than a thousand people along the shores of Lake Eyasi in Tanzania. Despite the small number of speakers, language use's vigorous, with most children learning it. The Hadza people are still partially hunter-gatherers, though there've been repeated efforts to settle them. However, the recent eradication of the tsetse fly from Hadza lands has cleared the way for cattle herders, charcoal burners, game hunters, and farmers, and the Hadza are losing their wa… (More on Hadza)