Archive for April, 2014

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Y Chromosome Differentiation 180 Million Years Old

24 April 2014

Just published in Nature is a study revealing the origins of maleness in mammals. The team of Prof. Henrik Kaessmann at the Center for Integrative Genomics and the Swiss Institute of Bioinformatics concludes that the key male-differentiating features in the Y chromosome appeared 180 million years ago in placentals and marsupials with the arrival of the sex-determining gene, SRY. Curiously, the AMHY gene, performing the same function in monotremes, appeared independently 175 million years ago. In other words, testicles have been around for a good long while, but not as long as one might have imagined.

The study, which required 29,500 computing hours, was done by isolating special Y chromosome genes among fifteen mammalian species. It is the largest study of the Y chromosome to date. More information can be found in the current issue of Nature or here.

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The Other Woman

16 April 2014

My wife and I saw yet another ad for the revenge-flick, The Other Woman. In it a woman discovers her boyfriend is cheating on her. He has another girlfriend and, as it turns out, a wife. The three become conspirators, gleefully torturing the adulterous man, usually through demeaning sexual pranks.

I told my wife that men would never be able to get away with that sort of thing, making a movie about systematically humiliating a libido-driven woman in such ways.

But I was wrong. That’s the script of most every porno ever made.

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Echoes

10 April 2014

During a little adventure in Hot Springs, SD, my fatherly influence was again confirmed.