Thursday, October 7, 2021

Some evidence suggests that people behave more cooperatively and generously when observed or in the presence of images of eyes (termed the ‘watching eyes’ effect); replication failed

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Rotella A, Sparks AM, Mishra S, Barclay P (2021) No effect of ‘watching eyes’: An attempted replication and extension investigating individu...

Compared to vegans, meat consumers experienced both lower depression & anxiety; the more rigorous the study, the more positive and consistent the relation between meat consumption and better mental health

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Meat and mental health: A meta-analysis of meat consumption, depression, and anxiety. Urska Dobersek et al. Critical Reviews in Food Science...

Heterozygosity of the major histocompatibility complex predicts later self-reported pubertal maturation in men, suggesting a genetic trade-off between immunocompetence and sexual maturation in human males

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Heterozygosity of the major histocompatibility complex predicts later self-reported pubertal maturation in men. Steven Arnocky, Carolyn Hodg...
Wednesday, October 6, 2021

The dominant theory of facial attractiveness judgments is that they evolved to identify healthy individuals with strong immune systems; this paper finds little compelling empirical support

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Does facial attractiveness really signal immunocompetence? Benedict C. Jones, Iris J. Holzleitner, Victor Shiramizu. Trends in Cognitive Sci...

Human male reproduction exhibits distinct and derived features: Long-term reproductive partnerships, intensive paternal care including provisioning, shortened interbirth intervals, and later age-specific fertility than great ape comparisons

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Men and reproduction: Perspectives from biological anthropology. Peter B. Gray, Alex Straftis, Kermyt G. Anderson. Chp in The Routledge Hand...

Female bonobos engaged more in genito-genital rubbing when their sexual swelling was in the maximum phase, exchanging grooming & sex according to the daily “market fluctuations” associated with swelling status

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Sex and grooming as exchange commodities in female bonobos’ daily biological market. Simone Anzà, Elisa Demuru & Elisabetta Palagi. Scie...