Finger length may be an indication of sexual orientation, a controversial study has shown.

Scientists from California found that lesbian women have a greater difference in length between their ring finger and index finger than straight women do.

The same pattern was also found for homosexual men - but only when the researchers looked at those males that had several older brothers.

The scientists from the University of California at Berkeley were testing a theory that higher levels of androgen - male sex hormones - in the womb influence both finger length and sexual orientation.

Rest of article at: http://news.bbc.co.uk/2/hi/science/nature/695142.stm