In the span of a few years, the hair on top of a person's head can grow to an unwieldly length. No where else on the body has this type of growth, except facial hair, which grows at a much slower pace.
No other animal appears to exhibit this sort of hair growth.
What are the evolutionary characteristics that led to the rise of continuously growing hair?
2007-08-04 05:21:34 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Biology
LOL
Tell it to my scalp!
I suspect that the 'end the hair' instruction was lost at the same time the 'grow lots of hair over the entire body' instruction was lost. Ever hear of the Aquatic Ape?
2007-08-04 06:25:09 · answer #1 · answered by Anonymous · 0⤊ 0⤋
All hair keeps growing until it falls out. Some hair just falls out faster than other hair.
Animals have this kind of hair growth too. Ever seen a male African lion? Do you have a dog? Do you notice it shedding hair at certain times of the year? Ever noticed a horse with long mane and tail? A horse's mane and tail gows the same way a person's hair and beard grow. A long time before it falls out.
2007-08-04 11:23:13 · answer #2 · answered by Joan H 6 · 1⤊ 0⤋
Hair is a fast growing cell.
2007-08-04 08:27:54 · answer #3 · answered by Bornshy 2 · 0⤊ 0⤋