Sperm Like it Hot

Men may not always be very picky when it comes to the physical attractiveness of their female sex partners, but it turns out our sperm probably are. Scientists from the University of Oxford and the Royal Veterinary College studied the way red junglefowl, relatives of the common chicken, fuck. For them, female attractiveness is judged by the sexiness of their combs, the fleshy red nonsense on the tops of their heads. Males would get it on with females of all sorts, but the more attractive the female, the more ejaculate he would produce. In effect, the hotter junglefowl were more likely to be impregnated. The same mechanism holds true throughout a wide variety of slutty animal species, including our own. I don't want to make any broad generalizations here, but if you're a woman who's having trouble getting pregnant, there's a good chance your mate thinks you're fugly. Or you just need to spruce up your comb. More details here.