Anyone who's ever wondered if an older man's companion is his daughter or his date knows attraction isn't all biological. Sometimes, it's logical.
During one study, researchers asked women to look at the face of a man whom she knows nothing about and rate his attractiveness on a scale of 1 to 10. Then, they showed women the same face, but this time, the photo was paired with a corresponding income.
The results? When a man makes a lot of money, a woman will rate him higher on an attractiveness scale than she would rate that same man if he had a smaller income.
Dr. Berman says this doesn't prove that women are gold diggers. "It goes back again to evolution. When we were having babies who were very dependent on us, we couldn't hunt and take care of ourselves, so we were looking for the man who had the most social status, who was the best hunter, who was going to bring home the biggest chunk of meat for our babies," she says. "It's the same thing today."