Re: Why Do We Have Hair?
I've heard that head hair is a sexual feature selected for by evolution.
I read somewhere (The Naked Ape by Desmond Morris?) that pubic and underarm hair indicates sexual maturity and enhances body odour for attracting a mate.
During sex education at school the teacher told us that pubic hair reduces friction burns during intercourse. I remember in my innocence, and as a keen physics student, wondering just how energetic sex had to be to generate enough heat to cause burns.