In our ancestral past we descended from animals that had hare all over them (like gorillas and chimpanzees). The hare we have on our bodies is a hang over from that evolutionary past.
At some time in our evolutionary development there must have been some advantage to our ancestors to lose the bulk of that hair (perhaps we swam in water allot or perhaps where we lived was very hot).
We think we know the process by which this happened, it is called 'neoteny' - (the retention, by adults in a species, of traits previously seen only in juveniles). Baby chimps and gorillas have very little hair and this must have been the same with our evolutionary ancestors. One day a baby was born who did not develop the adult hair and this conveyed some advantage which led to that ancestor having offspring that survived to pass this trait on down to us.
The hairs we have do provide some protection an warmth for us and the hair bases are sensitive to movement of the hairs allowing us to feel the wind and when insects land on us.
try getting your mom to help
You are covered with hair except for the palms of your hands and the soles of your feet. But at puberty, the hairs under your arms begins to get thicker. This is to trap the odor you will begin to make. Of course, being human, we have decided we don't like that smell, so we cover it up.The hairs on our arms and legs begin to get thicker and longer about the same time. Men will produce more belly and chest hair than women will.
so that we can shave them
2 arms and 2 legs
2 arms and 2 legs
A cyclops with no arms or legs
Giraffes have four legs, but no arms.
How about Legs and Arms.
4.2
Two arms and two legs.
Oh brother! Your talking about a a follicle for every hair on your head, face, arms, pubic area, legs, etc. There is no way to put an exact number, it is different for every person.
cause you dont have a head