The old adage that men marry their mothers has some truth to it, according to some scientists who study this sort of thing. Researchers at the University of Iowa have discovered that "If a man's mother is highly educated, chances are the woman he marries will have a similar education," Reuters reports. They surveyed men in their 20s and 30s who earned salaries in the top 10% for their age group and found that 80% of men whose mothers had college degrees married women with college degrees. Sociologist Christine Whelan, the co-author of the study, told Reuters, "For an increasing number of these men ... when they make their own choices about someone who they think will be a good wife in the future or a good mother, they go back to their role models." [Reuters]