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By contactus
March 27, 2011
Category: Uncategorized
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Our nails are the human equivalent of claws, talons, and hooves. Twenty thousand years ago (give or take a few) our ancestors used their nails, both finger and toe, for the same reasons that modern apes use theirs: tearing bits of food apart, picking bugs out of their hair, gripping, scraping, etc. Thanks to the advent of handy gadgets such as tweezers and back scratchers, our nails aren't completely necessary any more - we could live without them, theoretically - but they're still quite useful. We use it for aiding in healing ,scratching ,grooming and so forth.

Some people say that nails help to protect our digits, but there seems to be more argument that they exist for purposes of manipulation - their use as "tools" - rather than fortification for the ends of our fingers. The composition of nails, keratin, is a strong material but its ability to reflect blunt force to the area is controversial.
 

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