Archive for ‘Sex and relationships’

September 6, 2011

Female Orgasm Remains an Evolutionary Mystery

Talk about interesting phenomena that science still can’t explain…

Female Orgasm Remains an Evolutionary Mystery – Wired.com

After baffling biologists for decades, the female orgasm has resisted yet another attempt to explain its elusive evolutionary origins.

A survey of orgasmic function in thousands of twins found none of the statistical patterns expected if female orgasm is just a coincidental byproduct of natural selection on its male counterpart, as has been suggested.

“The evolutionary basis of human female orgasm has been subject to furious scientific debate, which has recently intensified,” wrote University of Queensland geneticist Brendan Zietsch and Pekka Santtila of Finland’s Abo Akedemi University in a Sept. 3 Animal Behavior article. “These results challenge the byproduct theory of female orgasm.”

Further reading:

Evolutionary mystery of female orgasm deepens

September 1, 2011

Promiscuousness results in genetic ‘trade-up,’ more offspring

Promiscuousness results in genetic ‘trade-up,’ more offspring – ScienceBlog.com

It’s all about the grandkids! That’s what a team led by an Indiana University biologist has learned about promiscuous female birds and why they mate outside their social pair.

Many humans find the idea of mating for life a romantic ideal, but in the natural world, non-monogamous relationships may have their benefits. According to new research published online today (Aug. 31) in Proceedings of the Royal Society B, IU postdoctoral research associate Nicole Gerlach and colleagues have uncovered one of the benefits of this promiscuity: more grandkids!