- #1
matthyaouw
Gold Member
- 1,125
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Why does the hair on our bodies (much like the hair on animals) grow to a certain point, then fall out/stop, but the hair on our heads seems to grow indefinately? Do any other wild animals have hair that can grow forever? I'm not only interested in why it grows in physical terms, but evolutionary terms as well. It doesn't seem to pose much of an advantage that I can think of (actually, now that I'm writing this, shade springs to mind...)
Thanks.
Thanks.