Journal articleAmerican journal of human biology : the official journal of the Human Biology Council · January 2021
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ObjectivesThis study compared the prevalence of concentrated urine (urine specific gravity ≥1.021), an indicator of hypohydration, across Tsimane' hunter-forager-horticulturalists living in hot-humid lowland Bolivia and Daasanach agropastoralists ...
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Journal articleCurrent biology : CB · November 2020
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Animals use a variety of strategies to navigate their world, but few are thought to have detailed mental maps of their landscapes. New research with our closest relatives suggests chimpanzees may use cognitive maps to find the most energy efficient routes. ...
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Journal articleProceedings of the National Academy of Sciences of the United States of America · April 2018
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The evolutionary emergence of humans' remarkably economical walking gait remains a focus of research and debate, but experimentally validated approaches linking locomotor capability to postcranial anatomy are limited. In this study, we integrated 3D morpho ...
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Journal articleProceedings of the National Academy of Sciences of the United States of America · April 2018
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Immune function is an energetically costly physiological activity that potentially diverts calories away from less immediately essential life tasks. Among developing organisms, the allocation of energy toward immune function may lead to tradeoffs with phys ...
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Journal articleCurrent biology : CB · June 2017
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The evolutionary pressures shaping humans' unique bipedal locomotion have been a focus of research since Darwin, but the origins of humans' economical walking gait and endurance running capabilities remain unclear. Here, I review the anatomical and physiol ...
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Journal articleEvolutionary anthropology · January 2017
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Biological diversity is metabolic diversity: Differences in anatomy, physiology, life history, and activity reflect differences in energy allocation and expenditure among traits and tasks. Traditional frameworks in primatology, human ecology, public health ...
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Journal articleNature · May 2016
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Humans are distinguished from the other living apes in having larger brains and an unusual life history that combines high reproductive output with slow childhood growth and exceptional longevity. This suite of derived traits suggests major changes in ener ...
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Journal articleCurrent biology : CB · February 2016
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Current obesity prevention strategies recommend increasing daily physical activity, assuming that increased activity will lead to corresponding increases in total energy expenditure and prevent or reverse energy imbalance and weight gain [1-3]. Such Additi ...
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Journal articleExercise and sport sciences reviews · July 2015
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The human body adapts dynamically to maintain total energy expenditure (TEE) within a narrow physiological range. Rather than increasing with physical activity in a dose-dependent manner, experimental and ecological evidence suggests the hypothesis that TE ...
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Journal articleProceedings of the National Academy of Sciences of the United States of America · January 2014
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Humans and other primates are distinct among placental mammals in having exceptionally slow rates of growth, reproduction, and aging. Primates' slow life history schedules are generally thought to reflect an evolved strategy of allocating energy away from ...
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Journal articleProceedings of the National Academy of Sciences of the United States of America · January 2014
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When searching for food, many organisms adopt a superdiffusive, scale-free movement pattern called a Lévy walk, which is considered optimal when foraging for heterogeneously located resources with little prior knowledge of distribution patterns [Viswanatha ...
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Journal articleProceedings of the National Academy of Sciences of the United States of America · September 2012
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The classic anthropological hypothesis known as the "obstetrical dilemma" is a well-known explanation for human altriciality, a condition that has significant implications for human social and behavioral evolution. The hypothesis holds that antagonistic se ...
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Journal articlePloS one · January 2012
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Western lifestyles differ markedly from those of our hunter-gatherer ancestors, and these differences in diet and activity level are often implicated in the global obesity pandemic. However, few physiological data for hunter-gatherer populations are availa ...
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Journal articleProceedings of the National Academy of Sciences of the United States of America · August 2010
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Energy is the fundamental currency of life--needed for growth, repair, and reproduction--but little is known about the metabolic physiology and evolved energy use strategies of the great apes, our closest evolutionary relatives. Here we report daily energy ...
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Journal articleNature · September 2007
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The Plio-Pleistocene site of Dmanisi, Georgia, has yielded a rich fossil and archaeological record documenting an early presence of the genus Homo outside Africa. Although the craniomandibular morphology of early Homo is well known as a result of finds fro ...
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Journal articleProceedings of the National Academy of Sciences of the United States of America · July 2007
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Bipedal walking is evident in the earliest hominins [Zollikofer CPE, Ponce de Leon MS, Lieberman DE, Guy F, Pilbeam D, et al. (2005) Nature 434:755-759], but why our unique two-legged gait evolved remains unknown. Here, we analyze walking energetics and bi ...
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