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The baculum
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Humans have no penis bone because sex doesn't last long enough, scientists discover | The Independent | The Independent
Amy W Schwartz on Twitter: "Didn't ever think I'd spend a Sunday morning carefully suspending an otter penis bone from a wire, but here I am https://t.co/7vkR3u189a" / Twitter
human anatomy - why male penis not considered as cartilage? - Biology Stack Exchange
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Humans Lack Penis Bones Due To Quick Sex And Monogamy