Actually, its thought we have opposible thumbs inorder to pick fruits and insects for food. Thats what we first started eating. Its a pretty well known fact Europe was derived from about 50-couple hundred individuals who survived the ice age, likely eating dead or dying animals. We didn't start killing large beasts till far later in human history.
I am going to stir that pot now

feelthegirth quote "Maybe that's why larger cocks WERE selected for - human cocks are very large relative to other apes. "

I contend larger reproductive organs are being selected against. Its a measured known fact even Thomas Jefferson noted it that Native Americans and by measurement Asians have smaller testicles by weight. Of this there is no argument. I posted it a long time ago. Africans have the largest testicles by weight. So the further you get from the cradle of civilzation the smaller the nuts. Why?