Behaviour 156 (2019) 1083–1125 brill.com/beh Prevalence of tool behaviour is associated with pelage phenotype in intraspecific hybrid long-tailed macaques (Macaca fascicularis aurea × M. f. fascicularis) Michael D. Gumert a,b,h,∗, Amanda Wei Yi Tan c, Lydia V. Luncz d, Constance Ting Chua e,f, Lars Kulik g, Adam D. Switzer e,f, Michael Haslam h, Atsushi Iriki i,j and Suchinda Malaivijitnond b,k a Division of Psychology, School of Social Sciences, Nanyang Technological University, Singapore 639818, Singapore b Department of Biology, Faculty of Science, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand c Department of Anthropology, Durham University, Durham DH1 3LE, UK d Primate Models for Behavioural Evolution Lab, Institute for Cognitive and Evolutionary Anthropology, University of Oxford, Oxford OX1 6PN, UK e Earth Observatory of Singapore, Nanyang Technological University, Singapore 639798, Singapore f The Asian School of the Environment, Nanyang Technological University, Singapore 639798, Singapore g Department of Primatology, Max-Planck Institute for Evolutionary Anthropology, Leipzig 04103, Germany h School of Archaeology, University of Oxford, Oxford OX1 3QY, UK i Laboratory for Symbolic Cognitive Development, RIKEN Center for Biosystems Dynamics Research, Kobe 650-0047, Japan j Lee Kong Chian School of Medicine and RIKEN-NTU Research Centre for Human Biology, Nanyang Technological University, Singapore 636921, Singapore k National Primate Research Center of Thailand, Chulalongkorn University, Saraburi 18110, Thailand *Corresponding author’s e-mail address:
[email protected] Received 27 June 2018; initial decision 21 August 2018; revised 27 March 2019; accepted 28 March 2019; published online 4 July 2019 © The authors, 2019 DOI 10.1163/1568539X-00003557 This is an open access article distributed under the terms of the prevailing CC-BY-NC-ND license at the time of publication.