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dc.contributor.authorSt Clair, James J. H.
dc.contributor.authorKlump, Barbara C.
dc.contributor.authorSugasawa, Shoko
dc.contributor.authorHiggott, Caitlin G.
dc.contributor.authorColegrave, Nick
dc.contributor.authorRutz, Christian
dc.date.accessioned2018-07-21T23:34:54Z
dc.date.available2018-07-21T23:34:54Z
dc.date.issued2018-03
dc.identifier.citationSt Clair , J J H , Klump , B C , Sugasawa , S , Higgott , C G , Colegrave , N & Rutz , C 2018 , ' Hook innovation boosts foraging efficiency in tool-using crows ' , Nature Ecology and Evolution , vol. 2 , no. 3 , pp. 441-444 . https://doi.org/10.1038/s41559-017-0429-7en
dc.identifier.issn2397-334X
dc.identifier.otherPURE: 251739331
dc.identifier.otherPURE UUID: 97d77664-6237-4b73-872a-680509414af7
dc.identifier.otherScopus: 85039953776
dc.identifier.otherORCID: /0000-0003-4452-1177/work/58531624
dc.identifier.otherORCID: /0000-0001-5187-7417/work/60427573
dc.identifier.otherWOS: 000426559600012
dc.identifier.urihttps://hdl.handle.net/10023/15625
dc.descriptionThe study was funded through a BBSRC David Phillips Fellowship (grant BB/G023913/2 to C.R.), and PhD studentships from the BBSRC (B.K.) and JASSO (S.S.).en
dc.description.abstractThe New Caledonian crow is the only non-human animal known to craft hooked tools in the wild, but the ecological benefit of these relatively complex tools remains unknown. Here, we show that crows acquire food several times faster when using hooked rather than non-hooked tools, regardless of tool material, prey type and extraction context. This implies that small changes to tool shape can strongly affect energy-intake rates, highlighting a powerful driver for technological advancement.
dc.format.extent4
dc.language.isoeng
dc.relation.ispartofNature Ecology and Evolutionen
dc.rightsCopyright © 2018 the Author(s). 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/10.1038/s41559-017-0429-7en
dc.subjectQH301 Biologyen
dc.subjectNDASen
dc.subjectBDCen
dc.subjectR2Cen
dc.subject.lccQH301en
dc.titleHook innovation boosts foraging efficiency in tool-using crowsen
dc.typeJournal articleen
dc.contributor.sponsorBBSRCen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. Centre for Social Learning & Cognitive Evolutionen
dc.contributor.institutionUniversity of St Andrews. Centre for Biological Diversityen
dc.identifier.doihttps://doi.org/10.1038/s41559-017-0429-7
dc.description.statusPeer revieweden
dc.date.embargoedUntil2018-07-22
dc.identifier.grantnumberBB/G023913/2en


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