Begging and social tolerance: Food solicitation tactics in young chimpanzees (Pan troglodytes) in the wild
Publication date: Available online 22 November 2019Source: Evolution and Human BehaviorAuthor(s): Marlen Fröhlich, Gudrun Müller, Claudia Zeiträg, Roman M. Wittig, Simone PikaAbstractThe substantial role of food sharing in human evolution has been widely recognized, and food-soliciting tactics may have been critical in facilitating these transfers. Great apes, our closest living relatives, also use food-soliciting tactics to obtain food from both kin and non-kin. However, the individual and social factors involved in requests for and subsequent transfers of food have been relatively little studied. Here, we examined whi...
Source: Evolution and Human Behavior - November 22, 2019 Category: Psychiatry & Psychology Source Type: research
Female macaques compete for ‘power’ and ‘commitment’ in their male partners
Publication date: Available online 18 November 2019Source: Evolution and Human BehaviorAuthor(s): Christine B. Haunhorst, Ines Fürtbauer, Oliver Schülke, Julia OstnerAbstractThe formation of male-female social bonds and the resulting competition among females for male partners is a core element of human societies. While female competition for a male partner outside the mating context is well studied in humans, evidence from non-human primates is scarce, and its evolutionary roots remain to be explored. We studied two multi male – multi female groups of wild Assamese macaques (Macaca assamensis), a species where females...
Source: Evolution and Human Behavior - November 20, 2019 Category: Psychiatry & Psychology Source Type: research
Frank Wesley Marlowe (1954-2019)
Publication date: Available online 9 November 2019Source: Evolution and Human BehaviorAuthor(s): Coren L. Apicella (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - November 13, 2019 Category: Psychiatry & Psychology Source Type: research
Editorial Board
Publication date: November 2019Source: Evolution and Human Behavior, Volume 40, Issue 6Author(s): (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - November 9, 2019 Category: Psychiatry & Psychology Source Type: research
Frank Wesley Matthew (1954-2019)
Publication date: Available online 9 November 2019Source: Evolution and Human BehaviorAuthor(s): Coren L. Apicella (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - November 9, 2019 Category: Psychiatry & Psychology Source Type: research
Paternity confidence and social obligations explain men's allocations to romantic partners in an experimental giving game
Publication date: Available online 9 November 2019Source: Evolution and Human BehaviorAuthor(s): Brooke A. Scelza, Sean P. Prall, Kathrine StarkweatherAbstractPaternal care in humans is facultative, with investment decisions responsive to socioecological context. In particular, paternity confidence is thought to have a significant impact on men's provisioning. However, various aspects of the relationship a man has with his partner can also influence the way he provides for his children. Previous papers have tended to focus either on these kinds of relationship dynamics or on the impact of paternity confidence. However, the...
Source: Evolution and Human Behavior - November 9, 2019 Category: Psychiatry & Psychology Source Type: research
Erratum to “Whether to have a second child or not? An integrative approach to women's reproductive decision-making in current China” [Evolution and Human Behavior 40 (2019) 194–203]
Publication date: Available online 6 November 2019Source: Evolution and Human BehaviorAuthor(s): Jianghua Liu, Virpi Lummaa (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - November 7, 2019 Category: Psychiatry & Psychology Source Type: research
The evolution of the endowment effect
Publication date: Available online 1 November 2019Source: Evolution and Human BehaviorAuthor(s): Justin Bruner, Frank Calegari, Toby HandfieldAbstractPeople often value an item more when they own it than when it is available for purchase, and consequently are relatively reluctant to trade. This is the “endowment effect”, which has been widely documented in human populations and also in some non-human species. This paper develops a simple model in which it is adaptive to have a bias against trade, potentially explaining the basis of the endowment effect. The bias against trade arises from the strategic nature of trade i...
Source: Evolution and Human Behavior - November 2, 2019 Category: Psychiatry & Psychology Source Type: research
It's my idea! Reputation management and idea appropriation
Publication date: Available online 1 November 2019Source: Evolution and Human BehaviorAuthor(s): Sacha Altay, Yoshimasa Majima, Hugo MercierAbstractAccurately assessing others' reputation, and developing a reputation as a competent, honest, fair individual—a good epistemic and moral reputation—are critical skills. One way to gain epistemic reputation is to display our competence by sharing valuable ideas, especially if we appropriate these ideas—i.e. present them as being our own, and not someone else's, whether that is the case or not (H1). However, idea appropriation should also entail some risks, otherwise it woul...
Source: Evolution and Human Behavior - November 1, 2019 Category: Psychiatry & Psychology Source Type: research
Women’s sexual strategies in pregnancy
Publication date: Available online 24 October 2019Source: Evolution and Human BehaviorAuthor(s): Jaclyn Ross, Elizabeth G. PillsworthAbstractHumans exhibit an unusual pattern of sexual behavior compared to other mammalian females. Women's extended sexuality has been hypothesized to be related to a variety of possible benefits, especially non-genetic reproductive benefits, such as securing male investment via reinforced pairbonds or paternity confusion. But sexual behavior also comes at a cost, particularly for pregnant women, in terms of energetic costs, potential disease, and possible harm to the fetus. We hypothesize, th...
Source: Evolution and Human Behavior - October 26, 2019 Category: Psychiatry & Psychology Source Type: research
Mapping human vigilance: the influence of conspecifics
Publication date: Available online 13 October 2019Source: Evolution and Human BehaviorAuthor(s): Nuno Gomes, Gün R. SeminAbstractA considerable volume of animal research on detecting threat and foraging reveals that the co-presence of conspecifics reduces vigilance and enhances foraging. Monitoring threat is an adaptive process and is of considerable relevance to humans. It is therefore important to understand how the presence of others influences threat monitoring - namely vigilance - and consequently the capacity to detect threats. We examine this with a novel paradigm, that simulates a “foraging under threat” situa...
Source: Evolution and Human Behavior - October 14, 2019 Category: Psychiatry & Psychology Source Type: research
Family dynamics and age-related patterns in marriage probability
Publication date: Available online 9 October 2019Source: Evolution and Human BehaviorAuthor(s): Jenni E. Pettay, Simon N. Chapman, Mirkka Lahdenperä, Virpi LummaaAbstractIn cooperatively breeding species, extended living in natal families after maturity is often associated with limited breeding possibilities and the ability to gain indirect fitness from helping relatives, with family dynamics, such as parental presence and relatedness between family members, playing a key role in determining the timing of own reproduction. How family dynamics affect marriage and the onset of reproduction in humans is complex and less well...
Source: Evolution and Human Behavior - October 10, 2019 Category: Psychiatry & Psychology Source Type: research
Perceived goal instrumentality is associated with forgiveness: A test of the valuable relationships hypothesis
Publication date: Available online 15 September 2019Source: Evolution and Human BehaviorAuthor(s): Adam Smith, Thomas G. McCauley, Ayano Yagi, Kazuho Yamaura, Hiroshi Shimizu, Michael E. McCullough, Yohsuke OhtsuboAbstractThree autobiographical studies tested the valuable relationships hypothesis of forgiveness. Although previous studies revealed that relationship value predicts interpersonal forgiveness, the measure of relationship value may be conflated with affective assessments of the relationship with the transgressor, which might have caused a criterion contamination problem. Therefore, we assessed the goal-related i...
Source: Evolution and Human Behavior - September 16, 2019 Category: Psychiatry & Psychology Source Type: research
A comparative perspective on measures of cycle phase, and how they relate to cues, signals, and mating behavior: A commentary on Gangestad et al. (2019)
Publication date: Available online 13 September 2019Source: Evolution and Human BehaviorAuthor(s): James P. Higham (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - September 14, 2019 Category: Psychiatry & Psychology Source Type: research
Lassitude: The emotion of being sick
Publication date: Available online 11 September 2019Source: Evolution and Human BehaviorAuthor(s): Joshua M. Schrock, J. Josh Snodgrass, Lawrence S. SugiyamaAbstractOur long co-evolutionary history with infectious agents likely began soon after the rise of the first single-celled organisms. This ongoing evolutionary arms race has generated complex host adaptations, many highly conserved, for resisting infection (e.g., innate and acquired immune systems, infection-sensitive developmental programs, sexual reproduction). A large body of evidence suggests that, in humans, pathogen-avoidance disgust is an emotion that motivates...
Source: Evolution and Human Behavior - September 12, 2019 Category: Psychiatry & Psychology Source Type: research
