3 ms·

I imagine it must be difficult to find identical twins where one is gay and the other straight, but n=36 sure sounds like a small sample.

• flukus 8y ago
  I would have imagined the uniformity in finger lengths between identical twins would be the limiting factor.
  • jarfil 8y ago
    I'm surprised that it's even possible for identical twins to have different exposure levels to testosterone in the womb.