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
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
Jan 4, 2016 ... Dear Amy,. My claws can come in quite handy when I need to scratch my ears or
climb trees. I bet you've found that your own fingernails can be ...
Feb 7, 2013 ... We have fingernails because we're primates. ... Rather, primates developed
broader fingertips made for grasping. About 2.5 million years ago, ...
Mar 18, 2011 ... Fingernails are made of a tough protein called keratin (from the Greek word 'Kera'
, meaning horn). Keratin is also what animals' hooves and ...
You've had nails for a long time. In fact, you started growing nails before you
were even born! Here are the different parts of your nails and how they grow:.
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, ...
Jul 18, 2014 ... Nails are made of many layers of hard keratin, similar to hair. There's also a thin
layer of keratin covering most of the surface of your body; ...
Jun 10, 2015 ... If you've ever wondered why that happens—and what that beneath-the-nail stuff
is really made of—here's your answer.