A research was made on the relationship between digit ratio( 2 D ∶ 4 D) and social hierarchy or behavior in Macaca fascicularis. In January,2016,12 female adults M. fascicularis were randomly selected from Suzhou Xishan Zhongke Experimental Animals Co. Ltd.,Jiangsu province for observation. The lengths of index finger and ring finger were measured with X-ray. The order of eating was observed and videotaped to determine their social hierarchy,and study the relationship between this social hierarchy and 2 D∶ ...
食蟹猴Macaca fascicularis隶属于灵长目Prima-tes猴科Cercopithecidae猕猴亚科Cercopithecinae,也称长尾猕猴,具有发达的中枢神经系统组织结构,在免疫、生理和代谢等方面与人类高度相似,是医学、心理学和生命科学等研究中较理想的实验动物(Shively&Willard,2012;Xu et al.,201