نتایج جستجو برای: hunter gatherers
تعداد نتایج: 6282 فیلتر نتایج به سال:
OBJECTIVES Studies of total energy expenditure, (TEE; kcal/day) among traditional populations have challenged current models relating habitual physical activity to daily energy requirements. Here, we examine the relationship between physical activity and TEE among traditional Hadza hunter-gatherers living in northern Tanzania. METHODS Hadza adults were studied at two camps, with minimal inter...
The genetic background of the European Mesolithic and the extent of population replacement during the Neolithic is poorly understood, both due to the scarcity of human remains from that period and the inherent methodological difficulties of ancient DNA research. However, advances in sequencing technologies are both increasing data yields and providing supporting evidence for data authenticity, ...
In humans, voice pitch is thought to be a cue of underlying quality and an important criterion for mate choice, but data from non-Western cultures have not been provided. Here we test attributions to and preferences for voices with raised and lowered pitch in hunter-gatherers. Using a forced-choice playback experiment, we found that both men and women viewed lower pitched voices in the opposite...
1 Institute for Quantitative Social Science, Harvard University, Cambridge, MA 02138, USA 2 Department of Health Care Policy, Harvard Medical School, Boston, MA 02115, USA 3 Department of Anthropology, Cambridge University, Cambridge, CB2 3DZ, UK 4 Medical Genetics Department, University of California, San Diego, CA 92103, USA 5 Political Science Department, University of California, San Diego,...
A groundbreaking agreement has been signed granting the San people (formerly called the Bushmen) a share of profits from a potential obesity-reducing drug extracted from the hoodia cactus. The deal is one of the first to give holders of traditional knowledge a share of royalties from drug sales. For thousands of years the San, one of the oldest peoples in Southern Africa, have eaten slices of t...
The validity of evolutionary explanations of vocal sexual dimorphism hinges upon whether or not individuals with more sexually dimorphic voices have higher reproductive success than individuals with less dimorphic voices. However, due to modern birth control methods, these data are rarely described, and mating success is often used as a second-rate proxy. Here, we test whether voice pitch predi...
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