Over the course of several weeks, scientists observed only adolescent females engaging in sexual activities — with one another and with sika deer. Specifically, adolescent female macaques initiated sexual interaction with a sika deer 258 times. Adolescent male and adult female deer, meanwhile, largely avoided the persistent primates. Adolescent female macaques are not the preferred partners of adult male macaques and are often rejected. Adolescent macaques usually climb on top of sika deer to play or be transported.

Source: Washington Post December 16, 2017 23:15 UTC