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Reference Terms
from Wikipedia, the free encyclopedia


Keratins are a family of fibrous structural proteins; tough and insoluble, they form the hard but nonmineralized structures found in reptiles, birds and mammals.

Note:   The above text is excerpted from the Wikipedia article "Keratin", which has been released under the GNU Free Documentation License.
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Plants & Animals News
October 20, 2016

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updated 12:56 pm ET