Interested to know if there was an evolutionary advantage to a bigger penis i decided to go do some googleing and found a theory by a nurse on wikianswers and she came up with a credible theory, what do you reckon to her theory. She says that she has assisted in over 300 circumcisions and that black babies are born with the biggest dicks and asian babies with the smallest. She says the reason is down to testosterone levels and that men with higher levels tend to have more manly physiques and bigger penises but that the downside leads to aggression and higher susceptibility to illness later on in life or earlier in child development. She explains how in evolutionary terms the bigger penis has only one advantage...to plant sperm further into the female and increase chances of a speedier conception and that it may be nature's way of helping black people to 'catch up' with other races. (Is that controversial?) Asians have the longer life spans and so higher populations because they have generally smaller penises which means less testosterone. This kind of makes sense that testosterone plays a big part in life expectancy considering that women have an average 5-7yrs longer than men regardless of race. Any thoughts?