Boys are better than girls

Baby Boys Keep Marriages Together Better Than Baby Girls
Steven E. Landsburg reports in Slate on a new study that finds male babies keep marriages together better than female babies.
In the United States, the parents parents of a boy. The more daughters, the bigger the effect: The parents of of a girl are nearly 5 percent more likely to divorce than the three girls are almost 10 percent more likely to divorce than the parents of three boys. In Mexico and Colombia the gap is wider; in Kenya it's wider still. In Vietnam, it's huge: Parents of a girl are 25 percent more likely to divorce than parents of a boy.

University of Chicago researchers say boys are better than girls at perceiving spatial relationships early in childhood. Earlier research indicated the ability to read maps and technical drawings became sharper in males during adolescence. "These findings should put to rest claims that adolescence marks the onset of sex differences in spatial skills," ...