Biologists who study long-tailed macaques (Macaca fascicularis) have discovered that the monkeys tend to rub themselves.
It turned out that males and females are differentAge groups used stones to self-satisfy, but there were differences between macaque groups. Thus, female monkeys are more selective in their choice of stones, and young males are more active and “play” with stones more often, indiscriminately. Scientists who observed monkeys usually didn't have to wait long to observe their behavior.
Some populations of macaques also regularly playwith stones without sexual overtones. They wear them, rub them on surfaces and hit each other. According to scientists, it can only be observed in certain groups of animals. That said, the “self-assisted masturbation with tools” described in the new study was observed in only one population of macaques in Bali, Indonesia.
The new study builds on previous researchwork published in the journal Physiology & Behavior in 2020. Then biologists first proposed the hypothesis of sex toys in male macaques, and now scientists have also studied females, and also studied the potential motivation of macaques of both sexes.
Young males spent significantly more timeto masturbation than mature individuals. It turned out that they are, in principle, the least prone to masturbation with stones. Perhaps because they had access to mature females.
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