On your right hand, is the index finger (2nd finger) longer or shorter than the ring finger (4th finger)? Here's an internet test: http://www.quizane.com/male-or-female-brain_2.result Spoiler alert: http://en.wikipedia.org/wiki/Digit_ratio This is all for fun. No serious science intended. However, I thought the observation was curious. One of my favorite professors (ca. 50 years ago) was a forensic anthropologist, like the "Bones" heroine, and I continue to find such relationships interesting. John BTW: I happen to be left-handed, and my right hand follows the presumed pattern, but my left doesn't.