The scrotum is a sac of skin and muscle that contains the testicles in most mammals. It's located outside of the body because the testicles need to be cooler than the inside of the body to make sperm. The scrotum also helps with the thermoregulation of the testicles.
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a pouch of skin containing the testicles.
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The scrotum is a sac of skin and muscle that contains the testicles in most mammals. It's located outside of the body because the testicles need to be cooler than the inside of the body to make sperm. The scrotum also helps with the thermoregulation of the testicles.
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