A scrotum is like a spare refrigerator in the garage just for beer. If you’ve got a spare beer fridge, you’re probably the type who expects a party to break out at any moment. You want to be prepared. A scrotum fulfills the same function. By keeping the testicles a few degrees cooler than they would be inside the body, a scrotum allows chilled spermatozoa to accumulate and remain viable longer, available if needed.
From Sex at Dawn: The Prehistoric Origins of Modern Sexuality, by Christopher Ryan and Cacilda Jethá
49 Notes/ Hide
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