Scientist that studied macaques in Japanese forests, discovered a behavior that they describes as ‘unusual’ and ‘intriguing’. Female adolescent monkeys mount the back of sika deer and start making thrusting moves while they create sexual sounds. They also bit and smell the deer and pull their antlers. All the while, the deer seems unmoved.
When the deer walks away, the monkeys display sexually motivated tantrums, while they shout to the deer, a research report that was published in the Archives of Sexual Behavior says. The researchers determined that the behavior is of sexual nature, for the monkey at least. Japanese macaques ride deer more often, but usually as a means of transportation. These adolescent monkeys obviously take that to the next level.
The scientist observed 170 macaques in total, of which 18 female adolescents in the age of 3 to 4 years. These females didn’t just have sex with each other, but also with a male deer or stag. They showed this behavior 258 times in a period of a couple of weeks. Female deer avoided contact with the primates.
The researchers think that the behavior has to do with the sexual discovery that adolescent monkeys of that age are going through. Also it might be that they experience a lack of sex with their own species. Female adolescent macaques are ignored by adult male monkeys until they are all grown up. This could lead to sexual frustration. But it might also be the case that adolescent female macaques prefer a passive stag in stead of an aggressive male primate.
Marc van Lier
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