Here's an interesting finding on spatial skills:

http://psychcentral.com/news/2013/0...ity-by-playing-more-boy-games/53560.html

I thought I'd point out a couple of things about the spatial skills gap, which I believe has been corroborated. Number one is that it is a small gap, IIRC. Number two is that there is quite a bit more to math than spatial skills (IIRC, girls actually have better arithmetic skills on average, which we don't seem to be crowing about as proof that girls possess natural math superiority). Number three is that with all findings like these, you must remember that a small average group difference is often damagingly misleading in terms of what it means in the real world.

I'll also point out that the findings on girls' superior verbal skills haven't seemed to translate into most famous authors being women (and the world vociferously defending that as the natural order of things). Hmmm. It seems this "natural superiority" thing isn't destiny, eh?