Gumert, M. D., Tan, A. W. Y., Luncz, L. V., Chua, C. T., Kulik, L., Switzer, A. D., Haslam, M., Iriki, A., & Malaivijitnond, S. (2019). Prevalence of tool behaviour is associated with pelage phenotype in intraspecific hybrid long-tailed macaques (Macaca fascicularis aurea × M. f. fascicularis). Behaviour, 156(11), 1083-1125. https://doi.org/10.1163/1568539x-00003557