Semen and Evolution

I’ve barely scratched the surface of the evolved semen literature. Here’s a snapshot of other recent findings from Gallup’s lab: semen-exposed women perform better on concentration and cognitive tasks; women’s bodies can detect “foreign” semen that differs from their recurrent sexual partner’s signature semen, an evolved system that, Gallup believes, often leads to unsuccessful pregnancies because it signals a disinvested male partner who is not as likely to provide for the offspring; women who had unprotected sex with their ex-partners—and therefore were getting regularly inseminated—experience more significant depression on breaking up than those who were not as regularly exposed to their ex’s semen (and they also go on the “rebound” faster in seeking new sexual partners, which presumably would help fix their semen-deprived depression). And the list goes on.


Political/Religious Leanings in Scientists

2011: Social Scientist Sees Bias Within

The politics of the professoriate has been studied by the economists Christopher Cardiff and Daniel Klein and the sociologists Neil Gross and Solon Simmons. They’ve independently found that Democrats typically outnumber Republicans at elite universities by at least six to one among the general faculty, and by higher ratios in the humanities and social sciences. In a 2007 study of both elite and non-elite universities, Dr. Gross and Dr. Simmons reported that nearly 80 percent of psychology professors are Democrats, outnumbering Republicans by nearly 12 to 1.

1998: Leading Scientists Still Reject God

Our chosen group of “greater” scientists were members of the National Academy of Sciences (NAS). Our survey found near universal rejection of the transcendent by NAS natural scientists. Disbelief in God and immortality among NAS biological scientists was 65.2% and 69.0%, respectively, and among NAS physical scientists it was 79.0% and 76.3%. Most of the rest were agnostics on both issues, with few believers. We found the highest percentage of belief among NAS mathematicians (14.3% in God, 15.0% in immortality). Biological scientists had the lowest rate of belief (5.5% in God, 7.1% in immortality), with physicists and astronomers slightly higher (7.5% in God, 7.5% in immortality). Overall comparison figures for the 1914, 1933 and 1998 surveys appear in Table 1.

Nick Sagan on Carl Sagan

He had a knack for pinball, knowing just how hard to bump a machine without tilting it. We’d go to arcades together and he’d win bonus games like mad. Videogames were never his thing, though he could appreciate the better ones. I remember the day I showed him Computer Baseball, a strategy game for the Apple IIe. You could pit some of the greatest teams in MLB history against each other. We played Babe Ruth’s 1927 Yankees against Jackie Robinson’s 1955 Dodgers for about an hour, and then he turned to me and said, “Never show this to me again. I like it too much, and I don’t want to lose time.”