Female–Male Mounting in Japanese Macaques: The Proximate Role of Sexual Reward

Female Japanese macaques (Macaca fuscata), in certain populations, routinely engage in female–male mounting. In this study, we documented patterns of vulvar, perineal and anal (VPA) stimulation during female–male mounting in Japanese macaques. During approximately 45% of the female–male mounts analyzed, two thirds of female mounters engaged in VPA stimulation. Given the VPA region’s primary role […]