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from Wikipedia, the free encyclopedia

Crayfish

Crayfish, sometimes called crawfish, are freshwater crustaceans resembling small lobsters, to which they are closely related.

They are found in bodies of fresh water that do not freeze to the bottom, and which have shelter against predators.

Most crayfish cannot tolerate polluted water.

Note:   The above text is excerpted from the Wikipedia article "Crayfish", which has been released under the GNU Free Documentation License.
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September 5, 2015

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