Homosexuality and Hormones

• Data on hormonal and developmental differences between homosexuals and heterosexuals are contradictory.
• Small, Byne, and LeVay have reviewed the available evidence.
• Small provides a balanced treatment of the evidence.
• Small statistically significant differences in fingerprints implicate differences in prenatal hormones.
• There are no apparent differences in androgen receptors between homosexuals and heterosexuals.
• Brain morphology and visuo-spatial ability may differ slightly between homosexuals and heterosexuals.
• Any differences in brain morphology have almost complete overlap in range.
• Macke et al. weaken the case for differences in hormone exposure.
• Fingerprints complete development by the fourth month of pregnancy and are heritable.
• The available evidence for hormonal correlates to homosexual behavior is inconclusive.

Can biology explain sexual orientation? Test your knowledge on the contradictory data surrounding hormonal and developmental differences between homosexuals and heterosexuals. Explore the evidence reviewed by Small, Byne, and LeVay, and learn about statistically significant differences in fingerprints, androgen receptors, brain morphology, and visuo-spatial ability. Discover how Macke et al. weaken the case for differences in hormone exposure and learn about the inconclusive evidence for hormonal correlates to homosexual behavior. Take the quiz now to see how much you