Just read a 3-page essay suggesting alternatives to the notion that the decrease in human brain-size in the last 20,000 years was due to changes in the diet to a Neolithic one. Personally, the only one that makes sense to me is the Idiocracy claim since brain-size has happened at a faster rate than the decrease in body size. Wrangham's claim re dogs/wolves seems bunk since wolves have been shown to be far more intelligent than domesticated dogs in IQ tests(as opposed to training tests):- http://discovermagazine.com/2010/sep/25-modern-humans-smart-why-brain-shrinking http://discovermagazine.com/2010/sep/25-modern-humans-smart-why-brain-shrinking/article_view?b_start:int=1&-C= http://discovermagazine.com/2010/sep/25-modern-humans-smart-why-brain-shrinking/article_view?b_start:int=2&-C= Geoff
