Unlike hairy chimpanzees and bonobos – and all other primates –
most of our skin is on display. We have evolved this way, even though fur is beneficial:
it insulates and protects the skin, and in some cases acts as a useful camouflage.
So if it is so advantageous, why did we lose so much of it?
It might not seem strange, because we are used to having relatively little hair
covering our bodies. But when we compare ourselves to the rest of the mammals,
and our closest living ape cousins, it is downright bizarre that we are the only
large-bodied mammal with so little of it :-\
and yet you shave off the little you have.
nature learning as it goes :-[ :-[ :-[ :-[
He proposed that we lost much of our fur due to sexual selection:
we preferred hairless mates, and that is why hairlessness became common :-[
but how does that make sense? i don't understand.
Charles is not around to explain
Between two and three millions years ago our ancestors began to inhabit
more open savannahs. This meant they were out in the Sun's glaring heat for many
more hours each day...
This move into open spaces offered an explanation for our lack of hair !!