By the age of 19, 80% of US males and 75% of women have lost their virginity, and 87% of college students have had sex. But this number appears to be much lower at elite (i.e. more intelligent) colleges. According to the article, only 56% of Princeton undergraduates have had intercourse. At Harvard 59% of the undergraduates are non-virgins, and at MIT, only a slight majority, 51%, have had intercourse. Further, only 65% of MIT graduate students have had sex.
If higher IQ is almost always better, why the bell curve? Short people persist because height can have costs.
It’s not hard to find evidence that IQ can be fitness reducing.
Whoa! Fascinating and terrifying.
However, it would be interesting to check on the number of children and the number of grandchildren, not just sex and marriage.
Good point. Others have looked into that.
There’s a Wikipedia article about that (as there is about, well, pretty much everything).