Preprints (not yet peer-reviewed)

61 downloads
104 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
171 downloads
317 views

Whilst most anthropometrical research within sport has focussed on muscle and fat distribution, more studies are measuring the relationship between stature and wingspan, which has been found to be selective criteria in many sports. In this study the stature, wingspan...

["Anthropology","Anatomy and Physiology","Statistics"]
doi:10.7287/peerj.preprints.1892v2
132 downloads
555 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...

["Anthropology","Ecology","Evolutionary Studies"]
doi:10.7287/peerj.preprints.1802v2
56 downloads
255 views

Chimpanzees have the largest relative brain size, greatest reproductive output, and longest lifespan of any non-human ape; they also have the highest level of physical activity in the wild, as measured by daily walking and climbing distances. In this study, we...

["Anthropology","Ecology","Evolutionary Studies","Veterinary Medicine","Zoology"]
doi:10.7287/peerj.preprints.2307v1
171 downloads
296 views

How does nonhuman primate innovation compare to our own? Many primates innovate, for example to get otherwise inaccessible food or to increase their social standing, and nonhuman primate innovation can be broken into three component steps. It begins with the initial...

["Animal Behavior","Anthropology","Neuroscience","Zoology"]
doi:10.7287/peerj.preprints.2276v1
133 downloads
348 views

In a recent paper, Beall, Hofer, and Schaller (2016) use observational time series data to test the hypothesis that the 2014 Ebola outbreak influenced the 2014 U.S. Federal Elections. They find substantial associations between online search volume for Ebola and...

["Anthropology","Evolutionary Studies","Psychiatry and Psychology","Statistics"]
doi:10.7287/peerj.preprints.2165v2
74 downloads
159 views

The selective pressures challenging the human population leave genetic signatures. This study was designed to detect positive and balancing selection on the proprotein convertase subtilisin/kexin type 6 (PCSK6) gene by four different approaches (FDIST, BayeScan,...

["Anthropology","Bioinformatics","Evolutionary Studies","Genomics"]
doi:10.7287/peerj.preprints.2141v1
86 downloads
400 views

Paternity uncertainty seems to have shaped humans' differential investment in kin. I examined sex differences in communication among nuclear kin to expand inquiry on this matter and address some methodological limitations in prior work. I analyzed data from national...

["Anthropology","Evolutionary Studies","Psychiatry and Psychology"]
doi:10.7287/peerj.preprints.647v2
57 downloads
488 views

The evolution of the modern human (Homo sapiens) cranium is characterized by a reduction in the size of the feeding system, including reductions in the size of the facial skeleton, postcanine teeth, and the muscles involved in biting and chewing. The conventional...

["Anthropology","Computational Biology","Evolutionary Studies","Anatomy and Physiology"]
doi:10.7287/peerj.preprints.2113v1
89 downloads
496 views

The phylogenetic position of many fossil platyrrhines with respect to extant ones is not yet clear. Two main hypotheses have been proposed: the layered or successive radiations hypothesis suggests that Patagonian fossils are Middle Miocene stem platyrrhines lacking...

["Anthropology","Biodiversity","Evolutionary Studies","Zoology"]
doi:10.7287/peerj.preprints.1796v2
56 downloads
243 views

Uganda’s Kibale National Park contains a particularly diverse primate population, including about 1400 chimpanzees (Pan troglodytes). It is threatened by poaching and illegal deforestation, both of which are promoted by the extreme poverty, exponential population...

["Animal Behavior","Anthropology","Biodiversity","Conservation Biology"]
doi:10.7287/peerj.preprints.1894v1
29 downloads
226 views

Many major human infectious diseases are transmitted via bodily products such as feces, blood, semen, and saliva. Such contaminants are also known disgust elicitors among humans. From an evolutionary perspective, revulsion in humans is hypothesized to have evolved...

["Animal Behavior","Anthropology","Ecology","Evolutionary Studies","Parasitology"]
doi:10.7287/peerj.preprints.1851v1
34 downloads
190 views

Many animals, including humans and chimpanzees (Pan troglodytes), eat insects, although frequencies vary greatly between populations. Insects are traditionally either seen as desired nourishment or a fallback fare compensating a shortage of preferred foods. We...

["Animal Behavior","Anthropology","Zoology"]
doi:10.7287/peerj.preprints.1845v1
39 downloads
232 views

Chimpanzee (Pan troglodytes) termite fishing has been studied for decades. However, we still know little about how raw material for the extraction of tools is obtained. This is particularly true for potential selection criteria and what these imply for underlying...

["Animal Behavior","Anthropology","Zoology"]
doi:10.7287/peerj.preprints.1844v1
23 downloads
168 views

Pan and Ateles converge in many aspects of their social organization. Both are characterized by a high degree of fission-fusion dynamics, in which species exhibit high variation in party size, composition, and spatial cohesion. Within this framework, chimpanzees...

["Animal Behavior","Anthropology","Zoology"]
doi:10.7287/peerj.preprints.1816v1
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