Peer-reviewed Articles - Biology

67 downloads
703 views

Background Currently, there is limited knowledge about the genetics underlying pigmentary traits in East Asian populations. Here, we report the results of the first genome-wide association study of pigmentary traits (skin and iris color) in individuals of East...

["Anthropology","Evolutionary Studies","Genetics","Genomics"]
doi:10.7717/peerj.3951
74 downloads
738 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:10.7717/peerj.3958
105 downloads
453 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
57 downloads
438 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
90 downloads
757 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
770 downloads
3,355 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
171 downloads
1,109 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
106 downloads
555 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
179 downloads
1,312 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
276 downloads
1,219 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
1 citation
103 downloads
631 views

Background Demonstrating the impact that parents have on the fitness of their children is a crucial step towards understanding how parental investment has affected human evolution. Parents not only transfer genes to their children, they also influence their environments....

["Anthropology","Ecology","Evolutionary Studies","Genetics","Public Health"]
doi:10.7717/peerj.2904
3 citations
306 downloads
1,416 views

Background Premastication, the transfer of pre-chewed food, is a common infant and young child feeding practice among the Tsimane, forager-horticulturalists living in the Bolivian Amazon. Research conducted primarily with Western populations has shown that infants...

["Anthropology","Microbiology"]
doi:10.7717/peerj.2660
1 citation
240 downloads
996 views

Altruism toward strangers is considered a defining feature of humans. However, manifestation of this behaviour is contingent on the costliness of the selfless act. The extent of altruistic tendencies also varies cross-culturally, being more common in societies...

["Animal Behavior","Anthropology"]
doi:10.7717/peerj.2610
756 downloads
2,436 views

Psychoactive plants contain chemicals that presumably evolved as allelochemicals but target certain neuronal receptors when consumed by humans, altering perception, emotion and cognition. These plants have been used since ancient times as medicines and in the context...

["Anthropology","Biodiversity","Evolutionary Studies","Neuroscience","Plant Science"]
doi:10.7717/peerj.2546
192 downloads
800 views

When exposed to enhanced background noise, humans avoid signal masking by increasing the amplitude of the voice, a phenomenon termed the Lombard effect. This auditory feedback-mediated voice control has also been found in monkeys, bats, cetaceans, fish and some...

["Animal Behavior","Anthropology","Evolutionary Studies"]
doi:10.7717/peerj.2328

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