biology question #2104  Tyler, a 15 year old male from Suwanee,
Georgia asks on May 22, 2004,   Why did humans develop pubic
hair (facial, under arm, etc.)? And also why does the male voice
change so much more than the female voice at puberty?  viewed
14874 times  the answer  David Winsemius answered on May 30,
2004, A:  All other primates are liberally covered in thick
hair, so I think the real question is why we lost thick hair in
other locations but kept it in the areas you mention. One
possible answer is that humans needed to be better able to cool
themselves in the act of chasing game on the African savanna.
See Modern Human Origins.  So why keep it in the under arms, the
pubic area, and on the face and head? I think most of the
answers are anthropological rather than medical. Since I am a
doctor, I am going to offer you guesses. First guess: the under
arms and the pubic region hair may be a need to prevent friction
at locations where body folds would be otherwise rubbing against
each other when walking