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dc.contributor.authorVale, Gillian L.
dc.contributor.authorDavis, Sarah J.
dc.contributor.authorLambeth, Susan P.
dc.contributor.authorSchapiro, Steven J.
dc.contributor.authorWhiten, Andrew
dc.date.accessioned2018-05-02T23:33:07Z
dc.date.available2018-05-02T23:33:07Z
dc.date.issued2017-09
dc.identifier.citationVale , G L , Davis , S J , Lambeth , S P , Schapiro , S J & Whiten , A 2017 , ' Acquisition of a socially learned tool use sequence in chimpanzees : implications for cumulative culture ' , Evolution and Human Behavior , vol. 38 , no. 5 , pp. 635-644 . https://doi.org/10.1016/j.evolhumbehav.2017.04.007en
dc.identifier.issn1090-5138
dc.identifier.otherPURE: 249910877
dc.identifier.otherPURE UUID: e61a4346-598e-41fa-bf59-b5fc685274b9
dc.identifier.otherRIS: urn:D703DC9F7E179166F14F19AB31129CA8
dc.identifier.otherScopus: 85019541084
dc.identifier.otherWOS: 000408291600008
dc.identifier.otherORCID: /0000-0003-2426-5890/work/65013974
dc.identifier.urihttp://hdl.handle.net/10023/13285
dc.descriptionThis work was supported by the John Templeton Foundation (grant ID40128, ‘Exploring the evolutionary foundations of cultural complexity, creativity and trust’ to AW and Kevin Laland) and by the NIH Cooperative Agreement (U42 OD-011197).en
dc.description.abstractCumulative culture underpins humanity's enormous success as a species. Claims that other animals are incapable of cultural ratcheting are prevalent, but are founded on just a handful of empirical studies. Whether cumulative culture is unique to humans thus remains a controversial and understudied question that has far-reaching implications for our understanding of the evolution of this phenomenon. We investigated whether one of human's two closest living primate relatives, chimpanzees, are capable of a degree of cultural ratcheting by exposing captive populations to a novel juice extraction task. We found that groups (N = 3) seeded with a model trained to perform a tool modification that built upon simpler, unmodified tool use developed the seeded tool method that allowed greater juice returns than achieved by groups not exposed to a trained model (non-seeded controls; N = 3). One non-seeded group also discovered the behavioral sequence, either by coupling asocial and social learning or by repeated invention. This behavioral sequence was found to be beyond what an additional control sample of chimpanzees (N = 1 group) could discover for themselves without a competent model and lacking experience with simpler, unmodified tool behaviors. Five chimpanzees tested individually with no social information, but with experience of simple unmodified tool use, invented part, but not all, of the behavioral sequence. Our findings indicate that (i) social learning facilitated the propagation of the model-demonstrated tool modification technique, (ii) experience with simple tool behaviors may facilitate individual discovery of more complex tool manipulations, and (iii) a subset of individuals were capable of learning relatively complex behaviors either by learning asocially and socially or by repeated invention over time. That chimpanzees socially learn increasingly complex behaviors through social and asocial learning suggests that humans' extraordinary ability to do so was built on such prior foundations.
dc.format.extent10
dc.language.isoeng
dc.relation.ispartofEvolution and Human Behavioren
dc.rights© 2017 Elsevier Ltd. All rights reserved. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1016/j.evolhumbehav.2017.04.007en
dc.subjectCultureen
dc.subjectCumulative cultureen
dc.subjectCultural evolutionen
dc.subjectSocial learningen
dc.subjectRatchetingen
dc.subjectBF Psychologyen
dc.subjectNDASen
dc.subject.lccBFen
dc.titleAcquisition of a socially learned tool use sequence in chimpanzees : implications for cumulative cultureen
dc.typeJournal articleen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews.Centre for Social Learning & Cognitive Evolutionen
dc.contributor.institutionUniversity of St Andrews.School of Psychology and Neuroscienceen
dc.contributor.institutionUniversity of St Andrews.Institute of Behavioural and Neural Sciencesen
dc.identifier.doihttps://doi.org/10.1016/j.evolhumbehav.2017.04.007
dc.description.statusPeer revieweden
dc.date.embargoedUntil2018-05-02


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