As humans we were once covered head to foot in hair.
But, we evolved to lose most of it - yet we kept the mop up top.
So, what scientific purpose does the hair on our head serve?
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For more news, analysis and features visit: www.bbc.com/news
#Hair #BBCNews
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As humans we were once covered head to foot in hair.
But, we evolved to lose most of it – yet we kept the mop up top.
So, what scientific purpose does the hair on our head serve?
Subscribe here: http://bit.ly/1rbfUog
For more news, analysis and features visit: www.bbc.com/news
#Hair #BBCNews
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