Discuss the relationship between sexual selection and human reproduction

There is supporting research for the assumption that physical attractiveness (sexual selection) is important in human choice of mate. Studies have shown that those who have symmetrical faces are more likely to attract a mate. Facial symmetry shows health and less chance of genetic defect. Therefore this proves the sexual selection theory correct as it shows that looks are an important factor in choosing the right mate who can produce genetically healthy children will have more chance of survival and therefore increased inclusive fitness.                                                                                                                                           This assumption was also supported by further research who found that those who have symmetrical faces have 2 to 3 times more reproductive partners. This gives further weight to the idea that sexual selection and in particular symmetry in human reproduction. However other factors could have affected the amount of sexual partners a person has such as self-esteem , this then means that this research maybe invalid and can therefore not be used fully to support sexual selection in human reproduction.

Research conducted by Dunbar supported the assumption that men prefer women who are of younger age. He found that women who were a member of the ‘lonely heart column’ tended to lie about their age. This shows that age is an important factor about successful mating. He also found that men preferred younger women again showing that men seek youthful women.

Research conducted by Regan et al found that American university students preferred men with social status rather than sexual desirability. Regan et al also found that men over exaggerated their commitment. This shows that wealth and resources is important in selecting a mate for human reproduction.

However one weakness about this approach is that the idea that women look only for men with wealth and status is out of date. Women are more independent and therefore do not look only for a man with status as they no longer need much help in raising their child. This then means that this theory is not applicable to society now.