Kinsey's 1948 work Sexual Behavior in the Human Male found that "46% of the male population had engaged in both heterosexual and homosexual activities, or 'reacted to' persons of both sexes, in the course of their adult lives".
O traballo de Alfred Kinsey Sexual Behaviour in the Human Male (1948) amosou que o "46% da poboación masculina participara en actividades de carácter heterosexual e homosexual, ou reaccionara a persoas de ambos os dous sexos no transcurso das súas vidas adultas".