A nail is a horn-like envelope covering the tips of the fingers and toes in humans,
most non-human primates, and a few other mammals. Nails are similar to claws
in other animals. Fingernails and toe...
And your fingernails make it easier to scratch an itch or remove a dog hair from
your sweater. Nails themselves are made of keratin (say: KAIR-uh-tin). This is the
Jul 18, 2007 ... Fingernails and toenails are made of keratin - a protein made of dead cells,
which is also the main protein found in hair. In fact, structurally nails ...
A fingernail is produced by living skin cells in the finger. A fingernail consists of
several parts including the nail plate (the visible part of the nail), the nail bed (the
Mar 13, 2012 ... Hair and nails are actually made of pretty much the same thing – a protein called
keratin. If you stay in water for too long and try to cut your nails ...
Human hair is made of the same stuff (keratin) that is found in human fingernails,
animal hooves, feathers, antlers, horns, and claws. The body protein, keratin, ...
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Nails are made out of keratin. Keratin is a tough, fibrous protein that also makes
up hair, horns, claws, hooves and feathers. Forms of keratin may also be a ...
Jan 23, 2012 ... Fingernails, as the human answer to claws in other animals, have many different
functions. They are involved in protecting the sensitive ...
Feb 7, 2013 ... We have fingernails because we're primates. ... Rather, primates developed
broader fingertips made for grasping. About 2.5 million years ago, ...