Men with higher IQs are less likely to cheat on their wives, concludes a new study.
And, according to researchers, it is so because of evolution.
New analysis of social trends indicates that intelligent place greater value on monogamy and sexual exclusivity than their less intelligent peers.
However, boffins at London School of Economics and Political Science found that women didn't follow the same trend.
The researchers could find no evidence that clever women are more likely than the general population to remain faithful, reports The Telegraph.
The findings by Dr Satoshi Kanazawa of the London School of Economics and Political Science were published in the March edition of the journal Social Psychology Quarterly.
To reach the conclusion, the expert analysed two major US surveys which ascertained the social attitudes and IQs of thousands of teenagers and adults.
He concluded: "As the empirical analysis ... shows, more intelligent men are more likely to value monogamy and sexual exclusivity than less intelligent men."
The expert claims that the correlation between intelligence and monogamy in men has its origins in evolutionary development.