MadSci Network: Evolution

Re: how do we evolve such minor things such as eye lashes and nose hair?

Date: Mon Dec 10 11:10:58 2001
Posted By: Yvonne A. Simpson, Grad student, Pathology, Edinburgh University
Area of science: Evolution
ID: 1007892924.Ev

Hi Alex, 
Perhaps you're looking at this backwards.  Our ancestors were hairy all 
over and gradually body hair became as now.  It is important to sense flies 
and dirt near the eye's and mouth - the hair protects the eyes and mouth so 
it was conserved during evolution.  
That's my theory anyway!
Hope it helps, 

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