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Hadza Women's Time Allocation, Offspring Provisioning, and the Evolution of Long Postmenopausal Life Spans
Extended provisioning of offspring and long postmenopausal life spans are characteristic of all modern humans but no other primates. These traits may have evolved in tandem. Analysis of relationships…
Grandmothering and the evolution of homo erectus.
An alternative scenario is developed, that climate-driven adjustments in female foraging and food sharing practices, possibly involving tubers, favored significant changes in ancestral life history, morphology, and ecology leading to the appearance, spread and persistence of H. erectus.
Antiquity of postreproductive life: Are there modern impacts on hunter‐gatherer postreproductive life spans?
- N. Blurton Jones, K. Hawkes, J. O'connell
- Biology, MedicineAmerican journal of human biology : the official…
- 1 March 2002
Effects of the modern world on hunter‐gatherer adult mortality, with special reference to the Hadza, suggests that such effects are not sufficient to deny the existence of substantial life expectancy at the end of the childbearing career.
Demography of the Hadza, an increasing and high density population of Savanna foragers.
- N. Blurton Jones, L. C. Smith, J. O'connell, K. Hawkes, C. Kamuzora
- Geography, MedicineAmerican journal of physical anthropology
- 1 October 1992
The results of a census are described, and the estimation of age structure, survivorship, mean age of women at childbearing, number of live children, total population size and density, and rate of change since 1967 are described.
Hadza meat sharing.
Male strategies and Plio-Pleistocene archaeology.
- J. O'connell, K. Hawkes, K. Lupo, N. Blurton Jones
- Biology, MedicineJournal of human evolution
- 1 December 2002
Collectively, Plio-Pleistocene site location and assemblage composition are consistent with the hypothesis that large carcasses were taken not for purposes of provisioning, but in the context of competitive male displays, suggesting that meat was consumed at or near the point of acquisition, not at home bases as the hunting hypothesis requires.
Hunting and Nuclear Families
Hadza hunter-gatherers display economic and social features usually assumed to indicate the dependence of wives and children on provisioning husbands and fathers. The wives and children of better…
Tolerated theft, suggestions about the ecology and evolution of sharing, hoarding and scrounging
- N. Blurton Jones
- 1 March 1987
More Lessons from the Hadza about Men’s Work
Two studies are compared, similarities are identified, and it is shown that emphasis on big game results in collective benefits that would not be supplied if men foraged mainly to provision their own households, with implications for hypotheses about the deeper past.
Social behaviour of stump-tailed macaques in captivity
Facial expressions and gestures seen in eight wild caught adult and three laboratory born stump-tailed macaques are described. Systematic observations, designed to show the association of these with…