International variation in IQ – the role of parasites

I co-authored a paper with Tom Sherratt at Carleton University a few months ago and we have received a bit of attention in the press (Washington Post blog, Scientific American, the Ottawa Sun, the heady heights of the Carleton University newspaper…).  As pretty much everyone has offered their views on the paper based on the press coverage (which has been pretty good but not perfect…), I had better set the record straight!
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