07-30-2003, 05:37 PM
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Senior Member
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Join Date: Sep 2001
Location: Upstate NY
Posts: 2,272
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A cat's arching back is part of a complex body language system, usually associated with feeling threatened. The arch is able to get so high because the cat's spine contains nearly 60 vertebrae which fit loosely together. Humans have only 34 vertebrae.
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Nubian
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