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The 22-Inch Penis Bone
Walruses have one of the largest penis bones (baculums) of any mammal — up to 22 inches long — and they've been carved into art for centuries.
Walrus
Odobenus rosmarus
Male walruses use their flippers for self-pleasure, aided by one of the largest penis bones in the animal kingdom.
Vital Stats
🏷️ TypePinniped (marine mammal)
🌍 Found InArctic Ocean — coasts of Alaska, Canada, Greenland, Russia
📏 SizeMales: 2.7-3.6m, 900-1,500kg | Females: 2.3-3.1m, 400-700kg
⏳ Lifespan30-40 years
🔞 Sexual MaturityMales: 7-10 years | Females: 4-6 years
💕 Mating SystemPolygynous (dominant males form harems of 10-15 females)
📅 Mating SeasonJanuary - April
🤰 Gestation15-16 months (includes 4-5 months delayed implantation)
👶 Offspring1 calf every 2-3 years
🍆 Penis Size56 cm
⏱️ Sex Duration2 minutes
🔬 Notable AnatomyMales have a baculum (penis bone) up to 56cm (22 in) — among the largest of any mammal
⚖️ Sexual DimorphismMales up to 2x heavier than females