Grandmothering, menopause, and the evolution of human life histories
نویسندگان
چکیده
منابع مشابه
Grandmothering, menopause, and the evolution of human life histories.
Long postmenopausal lifespans distinguish humans from all other primates. This pattern may have evolved with mother-child food sharing, a practice that allowed aging females to enhance their daughters' fertility, thereby increasing selection against senescence. Combined with Charnov's dimensionless assembly rules for mammalian life histories, this hypothesis also accounts for our late maturity,...
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The evolution of distinctively human life history and social organization is generally attributed to paternal provisioning based on pair bonds. Here we develop an alternative argument that connects the evolution of human pair bonds to the male-biased mating sex ratios that accompanied the evolution of human life history. We simulate an agent-based model of the grandmother hypothesis, compare si...
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15 صفحه اولEconomics and the evolution of life histories.
B irth and death are subjects of perennial interest. They are shaped by both physiology and behavior, which are themselves shaped (presumably) by natural selection. Thus, it seems natural to suppose that evolutionary ideas would form the core of demography. This, however, is not the case. Students of birth and death are largely divided: social scientists call the subject demography, and evoluti...
متن کاملEvolution of the human menopause.
Menopause is an evolutionary puzzle since an early end to reproduction seems contrary to maximising Darwinian fitness. Several theories have been proposed to explain why menopause might have evolved, all based on unusual aspects of the human life history. One theory is that menopause follows from the extreme altriciality of human babies, coupled with the difficulty in giving birth due to the la...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1998
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.95.3.1336