This is what I read in my spare time.
According to this Rutgers study, entitled "Differences in Finger Length Ratios Between Self-Identified "Butch" and "Femme" Lesbians":
There is indirect evidence that heightened exposure to early androgen may increase the probability
that a girl will develop a homosexual orientation in adulthood. One such putative marker of early
androgen exposure is the ratio of the length of the index finger (2D) to the ring finger (4D), which is
smaller in male humans than in females, and is smaller in lesbians than in heterosexual women. Yet
there is also evidence that women may have different sexual orientations at different times in their
lives, which suggests that other influences on female sexual orientation, presumably social, are atwork
as well. We surveyed individuals from a gay pride street fair and found that lesbians who identified
themselves as “butch” had a significantly smaller 2D:4D than did those who identified themselves
as “femme.” We conclude that increased early androgen exposure plays a role in only some cases of
female homosexuality, and that the sexual orientation of “femme” lesbians is unlikely to have been
influenced by early androgens.
...Iiiinteresting. Hmm.
*glances at fingers* It depends on the way I'm holding my hand; for some reason, holding it palm-up makes it seem like the difference in length between my ring and index fingers is significantly less than if I'm holding it palm-down; but my ring finger is unmistakably longer. Doesn't tell me anything whatsoever, but this paper has been keeping my attention for the last fifteen minutes or so. Thanks a lot, Cracked.
There is indirect evidence that heightened exposure to early androgen may increase the probability
that a girl will develop a homosexual orientation in adulthood. One such putative marker of early
androgen exposure is the ratio of the length of the index finger (2D) to the ring finger (4D), which is
smaller in male humans than in females, and is smaller in lesbians than in heterosexual women. Yet
there is also evidence that women may have different sexual orientations at different times in their
lives, which suggests that other influences on female sexual orientation, presumably social, are atwork
as well. We surveyed individuals from a gay pride street fair and found that lesbians who identified
themselves as “butch” had a significantly smaller 2D:4D than did those who identified themselves
as “femme.” We conclude that increased early androgen exposure plays a role in only some cases of
female homosexuality, and that the sexual orientation of “femme” lesbians is unlikely to have been
influenced by early androgens.
...Iiiinteresting. Hmm.
*glances at fingers* It depends on the way I'm holding my hand; for some reason, holding it palm-up makes it seem like the difference in length between my ring and index fingers is significantly less than if I'm holding it palm-down; but my ring finger is unmistakably longer. Doesn't tell me anything whatsoever, but this paper has been keeping my attention for the last fifteen minutes or so. Thanks a lot, Cracked.