Only recently has vegetarianism become a diet that could survive natural selection, so could it be that vegetarians are smarter than the rest of us? Surprisingly strong evidence says yes. "Among the British respondents in the National Child Development Study, those who are vegetarian at age 42 have significantly higher childhood general intelligence than those who are not vegetarian at age 42," reports a professor of Evolutionary Biology at the London School of Economics, Satoshi Kanazawa. "There appears very little doubt that more intelligent children are more likely to grow up to become vegetarian as adults in the United Kingdom."