{"title":"A biochronological date of 3.6 million years for “Little Foot” (StW 573, Australopithecus prometheus from Sterkfontein, South Africa)","authors":"Francis Thackeray","doi":"10.1002/evan.22049","DOIUrl":"10.1002/evan.22049","url":null,"abstract":"<p>A debate has developed with regard to geological ages of hominin fossils attributed to <i>Australopithecus africanus</i> and <i>Australopithecus prometheus</i> in South African Plio-Pleistocene cave deposits. For the Sterkfontein caves (Members 2 and 4), cosmogenic nuclide isochron (<sup>10</sup>Be/<sup>26</sup>Al) dating has yielded age estimates ranging from 3.4 to 3.7 million years ago (Ma). However, biochronological approaches using nonhominin primates suggest an alternative age range between 2 and 2.6 Ma. Based on a new method of hominin biochronology, Thackeray and Dykes have recognized that Sterkfontein Member 4 has a mean age of 2.76 Ma associated with a wide range (circa 2.0–3.5 Ma). In this study, the Sterkfontein skull and skeleton (StW 573), nicknamed “Little Foot” from Member 2 and attributed to <i>A. prometheus</i>, is reassessed. A regression model applied to estimate its age provides a hypothesized date of 3.6 Ma, which compares favorably with the existing cosmogenic dates.</p>","PeriodicalId":47849,"journal":{"name":"Evolutionary Anthropology","volume":"33 6","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11624294/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142559151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The evolutionary origin of human kissing","authors":"Adriano R. Lameira","doi":"10.1002/evan.22050","DOIUrl":"10.1002/evan.22050","url":null,"abstract":"<p>A kiss has been a signal of special affection across continents and cultures for millennia. Between times and peoples, social norms invariably prescribe kissing to specific affiliations and contexts, implying deeper biological bases. Why the protruding of the lips and slight suction when touching another? Capuchin monkeys stick their fingers in their friends' eyes as sign of affection, why have humans developed kissing? Here I briefly review proposed hypotheses for the evolution of human kissing. Great ape social behavior suggests that kissing is likely the conserved final mouth-contact stage of a grooming bout when the groomer sucks with protruded lips the fur or skin of the groomed to latch on debris or a parasite. The hygienic relevance of grooming decreased over human evolution due to fur-loss, but shorter sessions would have predictably retained a final “kissing” stage, ultimately, remaining the only vestige of a once ritualistic behavior for signaling and strengthening social and kinship ties in an ancestral ape.</p>","PeriodicalId":47849,"journal":{"name":"Evolutionary Anthropology","volume":"33 6","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11624293/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142477794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Distinct entanglements—Human–nonhuman animal interactions and the Atlantic Divide. A review of 'The Tame and the Wild' by \u0000 Marcy Norton, Cambridge: Harvard University Press. 2024. pp. 448. $37.95 (cloth). ISBN: 978-0-674-73752-5","authors":"Marcelo R. Sánchez-Villagra","doi":"10.1002/evan.22047","DOIUrl":"https://doi.org/10.1002/evan.22047","url":null,"abstract":"","PeriodicalId":47849,"journal":{"name":"Evolutionary Anthropology","volume":"33 6","pages":""},"PeriodicalIF":4.6,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}