Mechanisms of honing in the male baboon canine.

abstract：OBJECTIVES:Synthesize information on sleep patterns, sleep site use, and daytime predation at sleep sites in lorisiforms of Asia and Africa (10 genera, 36 species), and infer patterns of evolution of sleep site selection. MATERIALS AND METHODS:We conducted fieldwork in 12 African and six Asian countries, collecting da...

journal_title：American journal of physical anthropology

authors： Svensson MS,Nekaris KAI,Bearder SK,Bettridge CM,Butynski TM,Cheyne SM,Das N,de Jong YA,Luhrs AM,Luncz LV,Maddock ST,Perkin A,Pimley E,Poindexter SA,Reinhardt KD,Spaan D,Stark DJ,Starr CR,Nijman V

更新日期：2018-07-01 00:00:00

abstract：OBJECTIVES:We investigate whether age profiles of Tsimane forager-horticulturalists' reported skill development are consistent with predictions derived from life history theory about the timing of productivity and reproduction. Previous studies of forager skill development have often focused on a few abilities (e.g. hu...

journal_title：American journal of physical anthropology

authors： Schniter E,Gurven M,Kaplan HS,Wilcox NT,Hooper PL

更新日期：2015-09-01 00:00:00

abstract：:It is well established that some observed patterns of force production in the primate masticatory system match those predicted by a simplified lever model. This model is also commonly invoked in adaptive explanations of craniodental diversity. However, systematic studies of the predictive power of this model are missi...

journal_title：American journal of physical anthropology

authors： Spencer MA

更新日期：1999-04-01 00:00:00

abstract：:Several studies have suggested that incisor microwear reflects diet and feeding adaptations of anthropoids. However, such studies have been largely qualitative, and interpretations have relied on anecdotal references to diet and tooth use reported in the socioecology literature. The current study relates incisor micro...

journal_title：American journal of physical anthropology

authors： Ungar PS

更新日期：1994-07-01 00:00:00

abstract：:The "Kleiber relationship" describes the interspecific allometry between body size and metabolism. Like other allometric relationships, the Kleiber relationship not only summarizes scaling effects across species but also provides a standard by which species can be compared. One well-noted deviation from the Kleiber re...

journal_title：American journal of physical anthropology

authors： Kurland JA,Pearson JD

更新日期：1986-12-01 00:00:00

abstract：:An investigation of body height and cephalic measurements was performed among five groups of first-year medical students of the University of Rijeka School of Medicine (Rijeka, Croatia). Body height and different cephalic measurements showed normal distribution, both in male and female students. Differences between me...

journal_title：American journal of physical anthropology

authors： Buretić-Tomljanović A,Ristić S,Brajenović-Milić B,Ostojić S,Gombac E,Kapović M

更新日期：2004-01-01 00:00:00

abstract：:Although the population history and social organization of the prehistoric Pueblo Indians of the American Southwest have received attention in the archaeological literature, little research on this topic has been conducted by biological anthropologists. Here, we examine postmarital residence at two ancestral Tewa Indi...

journal_title：American journal of physical anthropology

authors： Schillaci MA,Stojanowski CM

更新日期：2005-04-01 00:00:00

abstract：:If predictable, ecogeographic patterning in body size and proportions of human populations can provide valuable information regarding human biology, adaptation to local environments, migration histories, and health, now and in the past. This paper evaluates the assumption that small-bodied Later Stone Age (LSA) forage...

journal_title：American journal of physical anthropology

authors： Kurki HK,Ginter JK,Stock JT,Pfeiffer S

更新日期：2008-05-01 00:00:00

abstract：OBJECTIVES:To describe the physical growth of healthy children under 7 years in China based on the latest national survey and provide more data for revising growth reference and monitoring the impact of social development on children's health and growth. METHODS:In the cross-sectional survey, 161,774 healthy children ...

journal_title：American journal of physical anthropology

authors： Zhang YQ,Li H,Wu HH,Zong XN,Zhu ZH,Pan Y,Li J,Zheng XR,Wei M,Tong ML,Zhou AF,Hu Y,Chen W,Zhu K,Yu Y

更新日期：2017-07-01 00:00:00

abstract：OBJECTIVES:European ancestry in many populations in Latin America at autosomal loci is often higher than that from X-linked loci indicating more European male ancestry and more Amerindian female ancestry. Generally, this has been attributed to more European male gene flow but could also result from an advantage to Euro...

journal_title：American journal of physical anthropology

authors： Hedrick PW

更新日期：2017-07-01 00:00:00

abstract：:The reproductive cycles of 23 captive olive baboons were studied over two successive parturitions. Interbirth intervals of 450 days were reduced by 60% in comparison to wild baboons, and consisted of 145 days of postpartum amenorrhea, 3.5 cycles, and a gestation of 185 days. Dominance rank was found to be one signific...

journal_title：American journal of physical anthropology

authors： Garcia C,Lee PC,Rosetta L

更新日期：2006-09-01 00:00:00

abstract：:Genetic data consisting of 14 red cell antigen groups and 11 serum and erythrocytic protein marker systems from four Eskimo populations of the Norton Sound area of Alaska are reported. The population structure of these four groups in analyzed both separately and within the larger context by comparison to 15 other circ...

journal_title：American journal of physical anthropology

authors： Crawford MH,Mielke JH,Devor EJ,Dykes DD,Polesky HF

更新日期：1981-06-01 00:00:00

abstract：:This study analyzes the distribution of ten protein genetic polymorphisms in eighteen populations from the most densely inhabited areas of Cameroon. The languages spoken belong to three different linguistic families [Afro-Asiatic (AA), Nilo-Saharan (NS) and Niger-Kordofanian (NK)]. The analysis of variation of allele ...

journal_title：American journal of physical anthropology

authors： Spedini G,Destro-Bisol G,Mondovì S,Kaptué L,Taglioli L,Paoli G

更新日期：1999-10-01 00:00:00

abstract：OBJECTIVES:The diet of tufted capuchins (Sapajus) is characterized by annual or seasonal incorporation of mechanically protected foods. Reliance on these foods raises questions about the dietary strategies of young individuals that lack strength and experience to access these resources. Previous research has demonstrat...

journal_title：American journal of physical anthropology

authors： Chalk J,Wright BW,Lucas PW,Schuhmacher KD,Vogel ER,Fragaszy D,Visalberghi E,Izar P,Richmond BG

更新日期：2016-02-01 00:00:00

abstract：:The history of discovery and interpretation of primate footprints at the site of Laetoli in northern Tanzania is reviewed. An analysis of the geological context of these tracks is provided. The hominid tracks in Tuff 7 at Site G in the Garusi River Valley demonstrate bipedality at a mid-Pliocene datum. Comparison of t...

journal_title：American journal of physical anthropology

authors： White TD,Suwa G

更新日期：1987-04-01 00:00:00

abstract：OBJECTIVES:The higher primate scapula has been subject to many explanations of the putative "adaptive value" of its individual traits. However, the shift from the bone's position in above branch quadrupeds to its more posterolateral position in recent hominoids obviously required fundamental changes to its general form...

journal_title：American journal of physical anthropology

authors： Selby MS,Lovejoy CO

更新日期：2017-04-01 00:00:00

abstract：:A new partial skeleton of Proconsul nyanzae from Mfangano Island, Kenya (KNM-MW 13142) includes five lumbar vertebrae, a partial sacrum, and nearly complete hipbone. Until recently, little was known of the axial and pelvic skeletons of Proconsul, or any early Miocene hominoid. Because torso morphology directly reflect...

journal_title：American journal of physical anthropology

authors： Ward CV

更新日期：1993-11-01 00:00:00

abstract：OBJECTIVES:The Fueguians are descendants of the first settlers of America, a 'relict' isolated geographically for 10,000 years. We compared their cranial variation with other Americans, and samples from Asia and Australia to know whether the modern extinct Fueguians can be considered Paleoamericans or not. MATERIALS A...

journal_title：American journal of physical anthropology

authors： Turbon D,Arenas C,Cuadras CM

更新日期：2017-06-01 00:00:00

abstract：OBJECTIVES:The growth of tooth dentin is incremental, so its formation represents a dietary record in early life. With archeological skeletons, applying sequential stable isotope analysis to the horizontal sections of tooth dentin has revealed weaning patterns and dietary changes that took place during childhood. Howev...

journal_title：American journal of physical anthropology

authors： Tsutaya T

更新日期：2020-12-01 00:00:00

abstract：OBJECTIVES:This paper addresses the prevalence and pattern of physical violence in the prehispanic society of Gran Canaria and discusses its link with the social structure and insular context in which that people lived. MATERIALS AND METHODS:347 prehispanic crania from Guayadeque Ravine (575-1415 AD) have been examine...

journal_title：American journal of physical anthropology

authors： Delgado-Darias T,Alberto-Barroso V,Velasco-Vázquez J

更新日期：2018-05-01 00:00:00

abstract：OBJECTIVES:It is a big challenge to diagnose the motives behind trepanations in prehistoric crania. Surgical-therapeutic attempts may be apparent by the presence of fractures, however, ritual or nonmedical motives are rarely supported by visible evidence in the bones. This article presents data on the trepanations of s...

journal_title：American journal of physical anthropology

authors： Gresky J,Batieva E,Kitova A,Kalmykov A,Belinskiy A,Reinhold S,Berezina N

更新日期：2016-08-01 00:00:00

abstract：:Mummies are human remains with preservation of nonbony tissue. Mummification by natural influences results in so-called natural mummies, whereas mummification induced by active (human) intervention results in so-called artificial mummies, although many cultures practiced burial rites, which to some degree involved bot...

journal_title：American journal of physical anthropology

authors： Lynnerup N

更新日期：2007-01-01 00:00:00

abstract：:An intergroup comparison of cephalometric landmark configurations by the finite-element method elegantly depicts the algebra of some of the size and shape change measures that one may define by reference to those landmarks. In studies of mean differences between groups, the statistical analysis of these finite element...

journal_title：American journal of physical anthropology

authors： Bookstein FL

更新日期：1987-12-01 00:00:00

abstract：:Recent biomechanical analyses examining the feeding adaptations of early hominins have yielded results consistent with the hypothesis that hard foods exerted a selection pressure that influenced the evolution of australopith morphology. However, this hypothesis appears inconsistent with recent reconstructions of early...

journal_title：American journal of physical anthropology

authors： Strait DS,Constantino P,Lucas PW,Richmond BG,Spencer MA,Dechow PC,Ross CF,Grosse IR,Wright BW,Wood BA,Weber GW,Wang Q,Byron C,Slice DE,Chalk J,Smith AL,Smith LC,Wood S,Berthaume M,Benazzi S,Dzialo C,Tamvada K,

更新日期：2013-07-01 00:00:00

abstract：OBJECTIVES:Little research exists documenting levels of intestinal inflammation among indigenous populations where exposure to macroparasites, like soil-transmitted helminths (STHs), is common. Reduced STH exposure is hypothesized to contribute to increased prevalence of elevated intestinal inflammation in wealthy nati...

journal_title：American journal of physical anthropology

authors： Cepon-Robins TJ,Gildner TE,Schrock J,Eick G,Bedbury A,Liebert MA,Urlacher SS,Madimenos FC,Harrington CJ,Amir D,Bribiescas RG,Sugiyama LS,Snodgrass JJ

更新日期：2019-09-01 00:00:00

abstract：:Body size (stature and mass) estimates are integral to understanding the lifeways of past populations.Body size estimation of an archaeological skeletal sample can be problematic when the body size or proportions of the population are distinctive. One such population is that of the Holocene Later Stone Age (LSA) of so...

journal_title：American journal of physical anthropology

authors： Kurki HK,Ginter JK,Stock JT,Pfeiffer S

更新日期：2010-02-01 00:00:00

abstract：:Linkage disequilibria are estimated for three 2-locus systems in 18 samples from Bougainville Island, Solomon Islands. The systems are haptoglobin, acid phosphatase and MN blood group. The disequilibria are estimated two ways: by maximum likelihood (ML) and by the covariance between the non-alleles. Though seven of th...

journal_title：American journal of physical anthropology

authors： Cadien JD,Hassett MJ,Friedlaender JS

更新日期：1978-03-01 00:00:00

abstract：:We evaluate the hardness of foods consumed by sympatric Cercopithecus ascanius (redtail guenons) and Lophocebus albigena (grey-cheeked mangabeys), and consider how selection might operate to influence foraging adaptations. Since L. albigena has among the thickest dental enamel in extant primates and is commonly referr...

journal_title：American journal of physical anthropology

authors： Lambert JE,Chapman CA,Wrangham RW,Conklin-Brittain NL

更新日期：2004-12-01 00:00:00

abstract：:Research to understand human genomic variation and its implications in health has great potential to contribute in the reduction of health disparities. Biological anthropology can play important roles in genomics and health disparities research using a biocultural approach. This paper argues that racial/ethnic categor...

journal_title：American journal of physical anthropology

authors： Batai K,Hooker S,Kittles RA

更新日期：2020-09-16 00:00:00

abstract：OBJECTIVES:In recent years, several studies have shown that populations from cold, high-latitude regions tend to have relatively shorter limbs than populations from tropical regions, with most of the difference due to the relative length of the zeugopods (i.e., radius, ulna, tibia, fibula). This pattern has been explai...

journal_title：American journal of physical anthropology

authors： Betti L,Lycett SJ,von Cramon-Taubadel N,Pearson OM

更新日期：2015-09-01 00:00:00