(THE GUARDIAN) — It seems that women these days are too clever for their own good, at least when it comes to making babies. Research emerging from the London School of Economics examining the links between intelligence and maternal urges in women claims that more of the former means less of the latter. In an ideal world, such findings might be interpreted as smart women making smart choices, but instead it seems that this research is just adding fuel to the argument that women who don’t have children, regardless of the reason, are not just selfish losers but dumb ones as well.

Satoshi Kanazawa, the LSE psychologist behind the research, discussed the findings that maternal urges drop by 25% with every extra 15 IQ points in his book The Intelligence Paradox. In the opening paragraph of the chapter titled “Why intelligent people are the ultimate losers in life”, he makes his feelings about voluntary childlessness very clear:

If any value is deeply evolutionarily familiar, it is reproductive success. If any value is truly unnatural, if there is one thing that humans (and all other species in nature) are decisively not designed for, it is voluntary childlessness. All living organisms in nature, including humans, are evolutionarily designed to reproduce. Reproductive success is the ultimate end of all biological existence.

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