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Dear Dallas:
Fingernails and toenails, hair, skin, animal fur, animal claws and hooves, and even animal feathers
are largely made up of the very same chemical protein called keratin. It's nature's own version of
plastic!
Your nails grow about an inch every 6 months from a bed at their base. That's the only part
that is alive and growing. That's why it doesn't hurt when you cut your nails -- because the tips
aren't alive at all!
Signed,
Wendell
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