Evolutionary psychologists have long thought that women are choosier than men when it comes to dating because in prehistoric times "dating" was much riskier for women—men could shrug off a one-night-stand, while women who chose an unfit mate could end up with years of motherhood without the help of a stable partner. "That is less true today, yet women remain much more selective," notes Wray Herbert. "Is this difference a vestige of our early ancestry? Or might it be totally unrelated to reproductive risk, the result of something more modern and mundane?"