Quote from Ripley:
Extra testosterone, a supersized brain and the heart of a champion.
http://news.discovery.com/human/shrinking-brains-intelligence-110207.html
"Human brains have shrunk over the past 30,000 years, puzzling scientists who argue it is not a sign we are growing dumber but that evolution is making the key motor leaner and more efficient."
Please continue, this has to be the funniest thread in a while...