ArticleProceedings. Biological sciences2011
Digit ratios predict polygyny in early apes, Ardipithecus, Neanderthals and early modern humans but not in Australopithecus.
Article in Proceedings. Biological sciences, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Genetic association suggests that SMOC1 mediates between prenatal sex hormones and digit ratio.Human genetics · 2013Trial
- Quantum Leaps in Human Biocultural Evolution and the Relationship to Cranial Capacity.Life (Basel, Switzerland) · 2023Article
- Oxytocin and vasotocin receptor variation and the evolution of human prosociality.Comprehensive psychoneuroendocrinology · 2022Article
- Firstborn sex defines early childhood growth of subsequent siblings.Proceedings. Biological sciences · 2021Article
- Mate Choice and the Persistence of Maternal Mortality.Reproductive sciences (Thousand Oaks, Calif.) · 2019Review
- Article
- Stay, stray or something in-between? A comment on Wlodarski et al.Biology letters · 2016Article
- One pedigree we all may have come from - did Adam and Eve have the chromosome 2 fusion?Molecular cytogenetics · 2016Article
- Stay or stray? Evidence for alternative mating strategy phenotypes in both men and women.Biology letters · 2015Article
- Genetic influences on the development of grip strength in adolescence.American journal of physical anthropology · 2014Article
- Male infanticide leads to social monogamy in primates.Proceedings of the National Academy of Sciences of the United States of America · 2013Article
- Sexual size dimorphism, canine dimorphism, and male-male competition in primates: where do humans fit in?Human nature (Hawthorne, N.Y.) · 2012Article
- ARE WITHIN-SEX MATING STRATEGY PHENOTYPES AN EVOLUTIONARY STABLE STRATEGY?Human ethology bulletinArticle
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4 authors.
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Abstract
Social behaviour of fossil hominoid species is notoriously difficult to predict owing to difficulties in estimating body size dimorphism from fragmentary remains and, in hominins, low canine size dimorphism. Recent studies have shown that the second-to-fourth digit ratio (2D : 4D), a putative biomarker for prenatal androgen effects (PAEs), covaries with intra-sexual competition and social systems across haplorrhines; non-pair-bonded polygynous taxa have significantly lower 2D : 4D ratios (high PAE) than pair-bonded monogamous species. Here, we use proximal phalanx ratios of extant and fossil specimens to reconstruct the social systems of extinct hominoids. Pierolapithecus catalaunicus, Hispanopithecus laietanus and Ardipithecus ramidus have ratios consistent with polygynous extant species, whereas the ratio of Australopithecus afarensis is consistent with monogamous extant species. The early anatomically modern human Qafzeh 9 and Neanderthals have lower digit ratios than most contemporary human populations, indicating increased androgenization and possibly higher incidence of polygyny. Although speculative owing to small sample sizes, these results suggest that digit ratios represent a supplementary approach for elucidating the social systems of fossil hominins.
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