Eight things you didn’t know you could do with human sperm

Sperm are single-purposed: They're optimized to get to an egg and inseminate it. But that doesn't mean there isn't more to this cell than meets the ovum. Sperm, along with its travelling companion, semen, are surprisingly versatile and adaptable substances. Here are eight unconventional things you can do with human… » 8/27/12 10:00am 8/27/12 10:00am