9/11 and the death of unborn boys.

This is strange:

A study in BMC Public Health found 12% more male babies were lost in September 2001 after the 20th week of pregnancy than in a "normal" September.

Data says fewer boys were born in all states three to four months after 9/11....

Dr Tim Bruckner, who led the research at the University of California, Irvine... said: "Across many species, stressful times reportedly reduce the male birth rate.

"This is commonly thought to reflect some mechanism conserved by natural selection to improve the mother's overall reproductive success."