Cheese crumbs spread before a pair of copulating rats will distract the female but not the male.
Alfred KinseyThe very general occurrence of the homosexual in ancient Greece, and its wide occurrence today in some cultures in which such activity is not taboo suggests that the capacity of an individual to respond erotically to any sort of stimulus, whether it is provided by another person of the same or opposite sex, is basic in the species.
Alfred KinseyIt is amazing to observe how many psychologists and psychiatrists have accepted this sort of propaganda, and have come to believe that homosexual males and females are discretely different from persons who respond to natural stimuli. Instead of using these terms as substantives which stand for persons, or even as adjectives to describe persons, they may better be used to describe the nature of the overt sexual relations, or of the stimuli to which an individual erotically responds.
Alfred Kinsey