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Article
Open AccessAn Evolutionary Psychological Approach Toward BDSM Interest and Behavior
Bondage/discipline, Dominance/submission, and Sadism/Masochism (BDSM) have gained increased attention and discussion in recent years. This prevalence is accompanied by a shift in perceptions of BDSM, including...
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Article
Psychological flexibility and sociosexual orientation mediate the association between self-perceived attractiveness and mating effort
Evolutionary approaches to human mating strategies have associated facial and physical attractiveness with cues of health, fertility, and personality traits both in men and women. In this study, we tested the ...
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Article
Testosterone, estradiol, and immune response in women
Findings on the associations between sex hormones and immune function are scarce and mixed, especially in women. To contribute to the understanding on how sex hormones and immune function interact, we analyzed...
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Article
Open AccessMacroinvertebrate species occupancy frequency distribution patterns in eutrophic lakes
Metacommunity models describe species occupancy frequency distribution (hereinafter ‘SOFD’). Our goal is to present how the differences in eight macroinvertebrate orders dispersal ability affect SOFD patterns....
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Open AccessSelf-Perceived Facial Attractiveness, Fluctuating Asymmetry, and Minor Ailments Predict Mental Health Outcomes
Phenotypic markers associated with developmental stability such as fluctuating asymmetry, facial attractiveness, and reports of minor ailments can also act as indicators of overall physical health. However, fe...
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Article
Open AccessToxoplasma gondii and Psychopathology: Latent Infection Is Associated with Interpersonal Sensitivity, Psychoticism, and Higher Testosterone Levels in Men, but Not in Women
The ability of parasites to hijack the nervous system, manipulating the host’s physiology and behavior in ways that enhance the parasite’s fitness while damaging host fitness, is a topic of ongoing research in...
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Open AccessWomen’s socioeconomic position in ontogeny is associated with improved immune function and lower stress, but not with height
Immune function, height and resource accumulation comprise important life history traits in humans. Resource availability models arising from life history theory suggest that socioeconomic conditions influence...
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Article
Open AccessEgalitarian mixed-species bird groups enhance winter survival of subordinate group members but only in high-quality forests
Only dominant individuals have unrestricted access to contested resources in group-living animals. In birds, subordinates with restricted access to resources may respond to intragroup contests by acquiring ext...
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Article
A Life History Approach to the Female Sexual Orientation Spectrum: Evolution, Development, Causal Mechanisms, and Health
Women’s capacity for sexual fluidity is at least as interesting a phenomenon from the point of view of evolutionary biology and behavioral endocrinology as exclusively homosexual orientation. Evolutionary hypo...
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Response to Commentaries: Life History Evolution, Causal Mechanisms, and Female Sexual Orientation
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Cross-Cultural Variation in women’s Preferences for men’s Body Hair
According to the ectoparasite avoidance hypothesis, natural selection has shaped human hairlessness to reduce the potential for the body to host disease carrying ectoparasites. However, men retain sexually dim...
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Open AccessWomen’s preferences for men’s facial masculinity are strongest under favorable ecological conditions
The strength of sexual selection on secondary sexual traits varies depending on prevailing economic and ecological conditions. In humans, cross-cultural evidence suggests women’s preferences for men’s testoste...
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Article
Open AccessLinking organismal growth, co** styles, stress reactivity, and metabolism via responses against a selective serotonin reuptake inhibitor in an insect
Evidence suggests that brain serotonin (5-HT) is one of the central mediators of different types of animal personality. We tested this assumption in field crickets Gryllus integer using a selective serotonin reup...
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Habitat quality affects stress responses and survival in a bird wintering under extremely low ambient temperatures
Animals normally respond to stressful environmental stimuli by releasing glucocorticoid hormones. We investigated whether baseline corticosterone (CORT), handling-induced corticosterone concentration(s), and b...
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Specificity of Women’s Sexual Response: Proximate Mechanisms and Ultimate Causes
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Reproduction compromises adaptive immunity in a cyprinid fish
Vertebrates differ in their ability to mount an adaptive immune response to novel antigens. Bioenergetic resources available to an organism are finite; investment in reproduction compromises immune function an...
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Further Evidence Using a Continuous Measure of Conception Probability that Women’s Preferences for Male Facial and Body Hair May Not Change with Fecundability
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A dark cuticle allows higher investment in immunity, longevity and fecundity in a beetle upon a simulated parasite attack
Cuticle melanism in insects is linked to a number of life history traits: a positive relationship is hypothesized between melanism, immune function, fecundity and lifespan. However, it is not clear how activat...
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The Role of Facial and Body Hair Distribution in Women’s Judgments of Men’s Sexual Attractiveness
Facial and body hair are some of the most visually conspicuous and sexually dimorphic of all men’s secondary sexual traits. Both are androgen dependent, requiring the conversion of testosterone into dihydrotes...
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Article
Intensity of haemosporidian infection of parids positively correlates with proximity to water bodies, but negatively with host survival
In birds, haemosporidian parasites have been found to have direct pathogenic effects on the host with important consequences for their fitness. However, less is known about distribution patterns of parasite ve...
