Changes

'''Heterosexuality''' involves union between two members of the opposite gender. It is the natural way that human beings and most animals reproduce.  Heterosexual attraction is natural; that is, men for women, and women for men.

'''Heterosexuality''' describes a physical and emotional attraction towards members of the opposite sex. In nature, heterosexuality is the norm, allowing for reproduction and continuation of the species. However, some animals are known to engage in both heterosexual and homosexual activity, such as the Bonobo, a relative of the chimpanzee.