Special thanks to our gal-pal CJ who shared this interesting article

she found on the internet.

For those of you who read “Sperm Wars” or “The Selfish Gene” and

want to know more about the evolutionary psychology of our

species….

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The more a woman has sex with her partner, the more committed she

becomes, and the less attracted she is to other men — at least in the

short-term. I blogged about this study several weeks ago and offered

explanations both hormonal and psychological. But another theory came to

my attention today in the form of a study on fruit flies.

For decades, scientists have known that female Drosophila refuse sex for

a period of time after they come into contact with seminal fluid. This

may give a reproductive edge to the first male with whom a female has

sex. A study led by Geoffrey Findlay at the University of Washington has

finally shed some light on the phenomenon. Turns out there are proteins

in seminal fluid, many of which transfer to the female’s system after

sex.

Some of these proteins are warrior-like — they fight the sperm of

rival males. Other proteins are like hypnotists — by affecting the

female’s hormones, they dampen her interest in having sex with other

males. Somewhat disturbingly, the more semen a female is exposed to, the

more influence the male has over her reproductive tract and her mating

behavior. Semen, it seems, has mind control properties.

So what does this mean for humans?