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keratin |
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keratinFibrous protein found in the skin of vertebrates and also in hair, nails, claws, hooves, feathers, and the outer coating of horns. If pressure is put on some parts of the skin, more keratin is produced, forming thick calluses that protect the layers of skin beneath. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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