Did we evolve a special ability for catching cheats?
By Bob Holmes PEOPLE are extraordinarily skilled at spotting cheats – much better than they are at detecting rule-breaking that does not involve cheating. A study showing just how good we are at this adds weight to the theory that our exceptional brainpower arose through evolutionary pressures to acquire specific cognitive skills. The still-controversial idea that humans have specialised decision-making systems in addition to generalised reasoning ability has been around for decades. Its advocates point out that the ability to identify untrustworthy people should be favoured evolutionarily,