There was a recent article in The Economist (October 11-17) reporting some interesting reseach in the UK about lesbians. It turns out that men and women when startled in a certain manner blink differently but that lesbians blink like men.
The article also reported lesbians like straight men are more acurate at throwing small objects (darts for example) than straight women.
It goes on to state that on average, lesbians have ring fingers that are longer than their index fingers, a feature typical of men but not of heterosexual women.
I realize this is a little off topic but somehow related and interesting at least to me.