Posterior dental size reduction in hominids: the Atapuerca evidence.

abstract：:Adult males in social groups often compete with other male group members for access to adult females. In some primate species, males also seek mating opportunities in neighboring social groups. Such extra-group fertilizations (EGFs) provide an additional source of variation in male fitness. This additional component o...

journal_title：American journal of physical anthropology

authors： Lawler RR

更新日期：2007-02-01 00:00:00

abstract：:Multivariate and cluster analyses of human skeletal remains of seven regional groups and nine individual sites and periods reveal different patterns of relationships for the sexes. This complex pattern of morphological affinities probably depends on differential demographic features. ...

journal_title：American journal of physical anthropology

authors： Rathbun TA

更新日期：1982-09-01 00:00:00

abstract：OBJECTIVES:The presence of Microchoerus in Sant Cugat de Gavadons (Late Eocene, Ebro Basin, Northeastern Spain) was first noted by M. Crusafont, who described a fragment of maxilla with two teeth that he interpreted as P(4) and M(1) and referred this specimen to the species Microchoerus ornatus. The objective of this w...

journal_title：American journal of physical anthropology

authors： Minwer-Barakat R,Marigó J,Moyà-Solà S

更新日期：2016-05-01 00:00:00

abstract：:Determination of inseparable exogenous and endogenous levels of toxic trace elements such as lead in human scalp hair has been used to understand and assess population exposure to such elements. For any such analysis, washing of the hair samples to remove superficial contamination is the foremost requirement. However,...

journal_title：American journal of physical anthropology

authors： Sen J,Das Chaudhuri AB

更新日期：2001-07-01 00:00:00

abstract：:The bone mineral content (BMC), bone width, and cross-sectional moment of inertia (CSMI) of 141 Alaskan Eskimo tibias were measured using photon absorptiometry. The effects of age and sex on the bones' structural properties were studied. It was found that in women, BMC decreased by 50% between the third and sixth deca...

journal_title：American journal of physical anthropology

authors： Martin RB,Burr DB,Schaffler MB

更新日期：1985-08-01 00:00:00

abstract：:The prevailing research design for studying infant sleep erroneously assumes the species-wide normalcy of solitary nocturnal sleep rather than a social sleeping environment. In fact, current clinical perspectives on infant sleep, which are based exclusively on studies of solitary sleeping infants, may partly reflect c...

journal_title：American journal of physical anthropology

authors： McKenna JJ,Mosko S,Dungy C,McAninch J

更新日期：1990-11-01 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：:In comparing long-bone cross-sectional geometric properties between individuals, percentages of bone length are often used to identify equivalent locations along the diaphysis. In fragmentary specimens where bone lengths cannot be measured, however, these locations must be estimated more indirectly. In this study, we ...

journal_title：American journal of physical anthropology

authors： Sládek V,Berner M,Galeta P,Friedl L,Kudrnová S

更新日期：2010-02-01 00:00:00

abstract：:Unlike monozygotic (MZ) twins, dizygotic (DZ) twins develop from separate ova. The resulting twins can have different sires if the fertilizing sperm comes from different males. Routine paternity testing of a pair of same-sexed chimpanzee twins born to a female housed with two males indicated that the twins were sired ...

journal_title：American journal of physical anthropology

authors： Ely JJ,Frels WI,Howell S,Izard MK,Keeling ME,Lee DR

更新日期：2006-05-01 00:00:00

abstract：:Museum curators and living communities are sometimes reluctant to permit ancient DNA (aDNA) studies of human skeletal remains because the extraction of aDNA usually requires the destruction of at least some skeletal material. Whether these views stem from a desire to conserve precious materials or an objection to dest...

journal_title：American journal of physical anthropology

authors： Bolnick DA,Bonine HM,Mata-Míguez J,Kemp BM,Snow MH,LeBlanc SA

更新日期：2012-02-01 00:00:00

abstract：:The Warao Indian village of Jobure has two modes for height within its adult male population. One mode is at 158 cm and the second occurs at 169 cm. Mean height for adult males and females for this village is significantly higher (alpha less than or equal to 0.05) than for the other Warao villages studied. Examination...

journal_title：American journal of physical anthropology

authors： Fleischman ML

更新日期：1980-09-01 00:00:00

abstract：:Although degenerative joint disease is an old and exceedingly common problem, clinical investigators have not reached a consensus regarding the etiology of this disease. Comparative osteological analysis of the knee, hip, shoulder, and elbow joints of 789 individuals from four human skeletal populations (Black and Whi...

journal_title：American journal of physical anthropology

authors： Jurman RD

更新日期：1977-03-01 00:00:00

abstract：:The methods used to study human growth and development (auxology) have not previously been applied within the setting of hominin maturation (ontogeny). Ontogeny is defined here as the pattern of biological change into an adult form, both at the individual and species level. The hominin fossil record has a lack of reco...

journal_title：American journal of physical anthropology

authors： Bolter DR,Cameron N

更新日期：2020-10-01 00:00:00

abstract：:Oliver is an African ape whose species identity has been debated in the popular media and by various scientists since the early 1970s. Although decisive morphological data has never been adduced on Oliver, many reports indicated that Oliver was morphologically unusual for a chimpanzee, particularly in his habitual bip...

journal_title：American journal of physical anthropology

authors： Ely JJ,Leland M,Martino M,Swett W,Moore CM

更新日期：1998-03-01 00:00:00

abstract：:During the 1992 and 1993 field seasons, several new specimens of Branisella boliviana, the oldest fossil platyrrhine, were discovered in the late Oligocene deposits at Salla, northwestern Bolivia. The new materials are two maxillary fragments and seven mandibular fragments, including P3 and P2, neither of which have p...

journal_title：American journal of physical anthropology

authors： Takai M,Anaya F

更新日期：1996-02-01 00:00:00

abstract：:Scratches found on the Engis 2 cranium have been described as perimortem and interpreted as intentional scalping marks by Russell and LeMort (Am. J. Phys. Anthropol. 69:317-323, 1986). These marks are described and compared to damage on other fossil hominids. The Engis marks have been misinterpreted. These marks are s...

journal_title：American journal of physical anthropology

authors： White TD,Toth N

更新日期：1989-03-01 00:00:00

abstract：:Familial similarity of the dermatoglyphic trait values of finger ridge-count scores and pattern intensity index is examined for 125 nuclear families from the Velanadu Brahmin population of Southern India by the method of association arrays. This methodology assesses parent-offspring and sibship similarity through a co...

journal_title：American journal of physical anthropology

authors： Karlin S,Williams PT,Chakraborty R,Mathew S

更新日期：1983-12-01 00:00:00

abstract：:Previous research has revealed extensive genetic variation among villages on Bougainville, in the Solomon Islands. Using previously published gene frequency data for seven loci, the role of isolation by distance in structuring genetic variation on Bougainville was reanalyzed. Newer methods of kinship estimation show t...

journal_title：American journal of physical anthropology

authors： Relethford JH

更新日期：1985-03-01 00:00:00

abstract：:The crown morphology of 202 dental casts from living Lengua Indians is described and compared with other Amerind, Melanesian, and Caucasoid samples. The Lengua dentition shows a high Mongoloid component with little effects of possible European admixture, thus supporting the theory that despite early Franciscan and Jes...

journal_title：American journal of physical anthropology

authors： Kieser JA,Preston CB

更新日期：1981-08-01 00:00:00

abstract：:A recently proposed model for canine reduction in hominid evolution (the "dual selection" model) suggests that canine reduction occurs as a result of selection for incorporation of the canines into a functional incisal field. Among the evidence used to support this model are patterns of wear and occlusion of the canin...

journal_title：American journal of physical anthropology

authors： Plavcan JM,Kelley J

更新日期：1996-03-01 00:00:00

abstract：:Appeals to synapomorphic features of the wrist and hand in African apes, early hominins, and modern humans as evidence of knuckle-walking ancestry for the hominin lineage rely on accurate interpretations of those features as adaptations to knuckle-walking locomotion. Because Gorilla, Pan, and Homo share a relatively c...

journal_title：American journal of physical anthropology

authors： Orr CM

更新日期：2005-11-01 00:00:00

abstract：:The robustness index (RI) is determined by multiplying dental mesiodistal and buccolingual diameters, and is used to estimate occlusal area. However, because teeth are not rectangular its calculation consistently causes overestimations. Moreover, teeth, in particular molars, are not identically shaped so overestimatio...

journal_title：American journal of physical anthropology

authors： Schmidt C,Ousley S,Schmidt M

更新日期：2011-06-01 00:00:00

abstract：OBJECTIVES:The island cemetery site of Ostorf (Germany) consists of individual human graves containing Funnel Beaker ceramics dating to the Early or Middle Neolithic. However, previous isotope and radiocarbon analysis demonstrated that the Ostorf individuals had a diet rich in freshwater fish. The present study was und...

journal_title：American journal of physical anthropology

authors： Fernandes R,Grootes P,Nadeau MJ,Nehlich O

更新日期：2015-10-01 00:00:00

abstract：:The anatomic distribution of the Stafne static mandibular bone defect (SSBD) is extended with a description of a cavitation defect on the buccal ramus of the mandible. The anatomical placement of SSBD thus correlates precisely with the submandibular and parotid salivary glands, and gives further evidence that an incre...

journal_title：American journal of physical anthropology

authors： Shields ED

更新日期：2000-03-01 00:00:00

abstract：:Hominid fossil teeth are analyzed in terms of size and shape and contrasted with teeth from a modern population to determine boundaries that can be placed on a reconstruction of the hominid phylogeny. Teeth alone are considered as they are the only material preserved in large enough quantities to measure population va...

journal_title：American journal of physical anthropology

authors： Read DW

更新日期：1975-01-01 00:00:00

abstract：OBJECTIVES:Interbirth intervals (IBIs) are a key metric of female reproductive success; understanding how they are regulated by environmental, social, and demographic factors can provide insight into sources of variance in female fitness. MATERIALS AND METHODS:Using 36 years of reproductive data on 490 IBIs for 160 wi...

journal_title：American journal of physical anthropology

authors： Gesquiere LR,Altmann J,Archie EA,Alberts SC

更新日期：2018-05-01 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：:This paper describes the development of a knuckle walking mode of locomotion by a free-living yellow baboon (Papio cynocephalus). Some implications of this occurrence for theories of the evolution of knuckle walking are discussed. ...

journal_title：American journal of physical anthropology

authors： Hausfater G

更新日期：1975-09-01 00:00:00

abstract：:In this study, dominance rank instability among male Lemur catta during mating was investigated. Also, data on agonism and sexual behavior across five consecutive mating seasons in a population of L. catta on St. Catherines Island, USA, were collected. Instances of male rank instability were categorized into three typ...

journal_title：American journal of physical anthropology

authors： Parga JA

更新日期：2009-03-01 00:00:00

abstract：:The Yakuts are a Turkic-speaking population from northeastern Siberia who are believed to have originated from ancient Turkic populations in South Siberia, based on archaeological and ethnohistorical evidence. In order to better understand Yakut origins, we modeled 25 demographic scenarios and tested by coalescent sim...

journal_title：American journal of physical anthropology

authors： Zlojutro M,Tarskaia LA,Sorensen M,Snodgrass JJ,Leonard WR,Crawford MH

更新日期：2009-08-01 00:00:00