Stone-tool-assisted hunting by a wild monkey (Macaca fascicularis aurea)

In: Behaviour
Michael HaslamIndependent Researcher, Garden Flat, 127 Putney Bridge Road, London SW15 2PA, UK

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Suchinda MalaivijitnondDepartment of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
National Primate Research Center of Thailand, Chulalongkorn University, Saraburi 18110, Thailand

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Michael D. GumertDivision of Psychology, School of Social Sciences, Nanyang Technological University, Singapore 639818, Singapore

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We report anecdotal evidence for stone-tool-assisted hunting by a non-human primate. Wild Burmese long-tailed macaques (Macaca fascicularis aurea) in Laem Son National Park, Thailand, regularly consume crabs, processing them both with and without stone pounding tools. However, stone-tool-assisted capture of crab prey, prior to the processing for consumption, has yet to be reported. We observed a tool-using episode as part of the hunting process, and provide video evidence confirming Burmese long-tailed macaques as the first known non-human primate to hunt and subdue other animals with the aid of stone tools.

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