How long is the average penis? This is a question that has plagued mankind
since time immemorial. In this blog
entry, I will tackle the question head on.
To begin, it is useful to know a little history about the penis of the
modern man.
In proportion to body size, Homo sapiens have one of the
largest penises in the animal kingdom.
Anthropologists contend that the penises of our ancestors were
proportionally smaller. The most common
theories suggest that penis length began to increase when our ancestors began
walking upright, on two legs. Animals
must exert force on the ground to propel themselves forward. Since the center of mass for quadrupeds is in
front of their hind limbs, their hips are positioned to allow backward movement
of the limbs, which produces an equal and opposite, and largely horizontal,
force.
