Men who have blue eyes are far more attracted to blue-eyed women than they are to women with brown or green eyes, Reuters reports of new research at the University of Tromso in Norway.
Why? It's the law of genetics. Eye color can help determine if their partner has been faithful. When both parents have blue eyes, their children will also have blue eyes--always. If the baby has brown eyes, she's a cheater.
"Before you request a paternity test, spend a few minutes looking at your child's eye color," lead study author Bruno Laeng wrote in the journal Behavioral Ecology and Sociobiology. "Blue-eyed men may have unconsciously learned to value a physical trait that can facilitate recognition of own kin."
In this study, the Norwegian team asked 88 students to rate the attractiveness of models based on photographs, which were manipulated so that half of them had blue eyes and the other half had brown eyes, reports Reuters.
What happened? The blue-eyed male volunteers showed a distinct preference for blue-eyed women. Interestingly, the men with brown eyes, who can't tell paternity based on their children's eye color, had no preferences for women's eye color. No matter their own eye color, women showed no preference.
In addition, a second study of 443 young adults came to the same conclusion: Men with blue eyes preferred partners with blue eyes.
--From the Editors at Netscape