111 downloads
1,692 views

Sexual selection favors traits that increase mating and, thus, reproductive success. Some scholars have suggested that intrasexual selection driven by contest competition has shaped human male aggression. If this is the case, one testable hypothesis is that beliefs...

["Animal Behavior","Anthropology","Ecology","Evolutionary Studies"]
doi:10.7287/peerj.preprints.3331v1
27 downloads
163 views

Social learning provides an effective route to gaining up-to-date information, particularly when information is costly to obtain asocially. Theoretical work predicts that the willingness to switch between using asocial and social sources of information will vary...

["Animal Behavior","Anthropology","Evolutionary Studies"]
doi:10.7287/peerj.preprints.3212v1
451 downloads
2,106 views

Computers are a central tool in the research process, enabling complex and large scale data analysis. As computer-based research has increased in complexity, so have the challenges of ensuring that this research is reproducible. To address this challenge, we review...

["Anthropology","Computational Biology","Science and Medical Education","Computational Science","Data Science"]
doi:10.7287/peerj.preprints.3192v1
85 downloads
382 views

Long-term field studies are critical for our understanding of animal life history and the processes driving changes in demography. Here, we present long-term demographic data for the northernmost population of mantled howler monkeys (Alouatta palliata) residing...

["Animal Behavior","Anthropology","Conservation Biology","Ecology","Zoology"]
doi:10.7717/peerj.3547
49 downloads
350 views

The physical environments of captive and wild animals frequently differ in substrate types and compliance. As a result, there is an assumption that differences in rearing environments between captive and wild individuals produce differences in skeletal morphology....

["Anthropology","Zoology"]
doi:10.7717/peerj.3668
34 downloads
232 views

Patagonia, a cul-de-sac for the continental dispersal of Homo sapiens into the Americas, has been extensively analyzed by archaeologists and bioanthropologists. Despite its deep and rich archaeological record, the genetic make up of its pre-contact inhabitants...

["Anthropology","Biodiversity","Evolutionary Studies","Genetics"]
doi:10.7287/peerj.preprints.3098v1
40 downloads
262 views

Introduction: Increasingly, the emergence and evolution of our species is being tied to genetic exchange between divergent lineages within ~1Ma (e.g., Neanderthals, Denisovans). However, little is known about genetic exchange during earlier (pre-1Ma) human evolution...

["Anthropology","Computational Biology","Evolutionary Studies","Genetics","Paleontology"]
doi:10.7287/peerj.preprints.3071v1
80 downloads
645 views

According to the logic of the Trivers–Willard hypothesis, in a human population, if socioeconomic status is transmitted across generations to some extent, and if sons of high-status parents tend to have higher reproductive success than daughters, while daughters...

["Anthropology","Evolutionary Studies","Psychiatry and Psychology"]
doi:10.7717/peerj.3546
38 downloads
261 views

Households are an important location for the transmission of communicable diseases. Social contact between household members is typically more frequent, of greater intensity, and is more likely to involve people of different age groups than contact occurring in...

["Anthropology","Epidemiology","Infectious Diseases","Public Health"]
doi:10.7287/peerj.preprints.3022v1
730 downloads
3,133 views

Background Facial expressions convey key cues of human emotions, and may also be important for interspecies interactions. The universality hypothesis suggests that six basic emotions (anger, disgust, fear, happiness, sadness, and surprise) should be expressed by...

["Animal Behavior","Anthropology","Zoology","Psychiatry and Psychology","Public Health"]
doi:10.7717/peerj.3413
160 downloads
981 views

Background The study of ancient microorganisms in mineralized dental plaque or calculi is providing insights into microbial evolution, as well as lifestyles and disease states of extinct cultures; yet, little is still known about the oral microbial community structure...

["Anthropology","Microbiology"]
doi:10.7717/peerj.3277
2 citations
101 downloads
482 views

Background The Eocene was the warmest epoch of the Cenozoic and recorded the appearance of several orders of modern mammals, including the first occurrence of Euprimates. During the Eocene, Euprimates were mainly represented by two groups, adapiforms and omomyiforms,...

["Anthropology","Biodiversity","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.3239
156 downloads
1,198 views

Background The experience of ‘sensed presence’—a feeling or sense that another entity, individual or being is present despite no clear sensory or perceptual evidence—is known to occur in the general population, appears more frequently in religious or spiritual...

["Anthropology","Neuroscience","Psychiatry and Psychology"]
doi:10.7717/peerj.3149
252 downloads
1,134 views

Background Manual anthropometric measurements are time-consuming and challenging to perform within acceptable intra- and inter-individual error margins in large studies. Three-dimensional (3D) laser body scanners provide a fast and precise alternative: within a...

["Anthropology","Anatomy and Physiology","Epidemiology","Public Health","Radiology and Medical Imaging"]
doi:10.7717/peerj.2980
169 downloads
179 views

The human male specific Y-chromosome passes from father to son essentially unchanged, but occasionally a random change, known as a mutation, occurs. These mutations, also called markers, serve as beacons and can be mapped. When geneticists identify a mutation in...

["Anthropology","Genetics","Genomics"]
doi:10.7287/peerj.preprints.2755v1

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