Evolutionary "Fun"

Tuesday, May 17, 2005

Evolutionary "Fun"

A new book posits that the female orgasm serves no evolutionary or adaptive purpose.
Dr. Elisabeth A. Lloyd, a philosopher of science and professor of biology at Indiana University, takes on 20 leading theories and finds them wanting. The female orgasm, she argues in the book, "The Case of the Female Orgasm: Bias in the Science of Evolution," has no evolutionary function at all.

Rather, Dr. Lloyd says the most convincing theory is one put forward in 1979 by Dr. Donald Symons, an anthropologist.

That theory holds that female orgasms are simply artifacts - a byproduct of the parallel development of male and female embryos in the first eight or nine weeks of life.

In that early period, the nerve and tissue pathways are laid down for various reflexes, including the orgasm, Dr. Lloyd said. As development progresses, male hormones saturate the embryo, and sexuality is defined.

In boys, the penis develops, along with the potential to have orgasms and ejaculate, while "females get the nerve pathways for orgasm by initially having the same body plan."

Nipples in men are similarly vestigial, Dr. Lloyd pointed out.

While nipples in woman serve a purpose, male nipples appear to be simply left over from the initial stage of embryonic development.

The female orgasm, she said, "is for fun."
How titilating-- only vestigally, of course!

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