Discuss the Relationship Between Sexual Selection and Human Reproductive Behaviour (24 Marks) Essay Example

Relationships can be explained by both sexual selection and the human reproductive system; however they both differ from each other. Sexual selection explains how evolution is driven by competitions for mating and to ensure the characteristics that are chose allow the reproduction to be a success. The human reproductive behaviour explains the strategies that both males and females take on. Sexual selection has two types, Intra-sexual selection and Inter- sexual selection. Intra-sexual selection is men competing towards each other for females. This allowed men to evolve into bigger, stronger males with more manly characteristics. Inter-sexual selection involves females choosing their males. They seek partners who can provide them with resources such as a home and wealth as well as protection. Due to the two types of selection, both male and females have evolved leading to better characteristics. Evolutionary theory states that body symmetry and symmetrical faces are desired characteristics, Cartwright (2000) found that women who have symmetrical breasts are more fertile than those with asymmetrical breasts. This supports the idea that body symmetry indicates reproductive fitness which leads to evolved characteristics, and allows women to have high self-esteem. Furthermore, other than symmetrical body and face structures males use physical attractiveness to judge how fit a female is to reproduce. Men look of more attractive females however females look for men who can provide good state of wealth. This is due to men only looking for the characteristics of reproduction and successive care of children from females. Although men and women both look into different characteristic, females are choosier since they have a larger investment and therefore more to lose. However, the study cannot be supported since a disadvantage of this study is that female may alter the appearance in order to seem young and fertile, while men may also lie and exaggerate on the amount of