Not everything that goes into finding a partner is biological. Researchers have also found that if a woman looks at the face of a man whom she knows nothing about, she will give it a rating on a scale of 1 to 10 that's different than if she is shown the same face and a corresponding income. When a man makes a lot of money, a woman will rate him higher on an attractiveness scale than she would that same man with a smaller income.
Dr. Berman says this isn't a case of women being 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."