Abstract
Demographic study of eastern Hadza hunter-gatherers between 1985 and 2000 showed a stable population with relatively normal parameters and a quite high rate of increase. Aspects discussed here are: population models and small remote populations; environmental keys to evolutionary demography of sub-Saharan savanna hunter-gatherers; grandmothers and longevity; men as helpers; whether economic and reproductive interests influence which norms invade, spread, and endure.
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