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Snow Monkey Solo Sessions
Japanese macaques frequently masturbate — both males and females — and researchers have documented them using tools and creative techniques.
Japanese Macaque
Macaca fuscata
Both male and female snow monkeys frequently masturbate, and researchers have documented them using stones as tools for stimulation.
Vital Stats
🏷️ TypeOld World monkey (primate)
🌍 Found InJapan — temperate and subtropical forests, including snowy mountains
📏 Size47-60cm, 8-18kg (males larger)
⏳ Lifespan22-32 years
🔞 Sexual MaturityMales: 4.5 years | Females: 3.5 years
💕 Mating SystemPolygynandrous — both males and females have multiple partners
📅 Mating SeasonAutumn/winter (September - March)
🤰 Gestation173 days
👶 Offspring1 offspring every 2 years
🍆 Penis Size5 cm
⏱️ Sex Duration15 seconds
🔬 Notable AnatomyBoth sexes masturbate using hands and tools (stones); females form sexual relationships with each other
⚖️ Sexual DimorphismMales ~50% heavier