The average speed of ejaculation is 28 miles per hour (45 kph). This means that during an orgasm, semen travels at a high velocity from the penis to its destination. But what exactly happens during...
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: What happens during ejaculation? a comprehensive guide to semen flow rates and speeds
The scrotum is an important organ that helps keep testicles at the right temperature for sperm production. It does this by contracting and expanding based on outside temperature changes. In colder...
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: How the scrotum keeps testicles warm and ready for baby making
