New Studies Point to Biological Basis for Male Homosexuality
A study out yesterday lends support to the fraternal birth order theory of male homosexuality. Also called the older brother effect, the effect has been hypothesized to relate to an immune response in mothers of sons. The more sons a woman has, the more likely her younger sons will not be heterosexual. Although without support … Continue reading “New Studies Point to Biological Basis for Male Homosexuality”