From the Herald today, there is an article on a researcher who looked into intelligence and desire for children by women when they were young. The more intelligent the girl, the less children she wanted, apparently. Women lose a quarter of their maternal urges for every 15 extra IQ points they have, according to international research. ... Using data from Britain's National Child Development Study, Mr Kanazawa studied the links between intelligence and maternal urges in women. He found more of the former meant less of the latter. Even after adding controls for economics and education, the results remained the same - the more intelligent the woman, the less likely she was to have children. Mr Kanazawa published his findings in his book, The Intelligence Paradox, and the research into the number of children compared with IQ was in the chapter titled "Why intelligent people are the ultimate losers in life". He found that the more intelligent both men and women w...