Hey dudes, guess what? Your immortal fertility? Not so much. New studies show that men have a biological clock, too. Sperm motility decreases by 0.7% a year for men starting at age 22. We are tempted to make some joke about your masculinity now being compromised, but are too busy thinking about yet another thing to worry about in regards to our own prospects of ever having children. Well, that and now we're really worried that Holly Madison won't be able to fufill her only wish in life. [MSNBC]