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 3-toed Sloth. Interestingly one of only three known mammals that have a different number of cervical vertebrae from the usual seven. Can you guess the other? No googling and NO it's not the giraffe.

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By Joshua1979
From: Colorado Springs, CO
Dec 27, 2011

The few exceptions include the manatee and the two-toed sloth, which have only six cervical vertebrae, and the three-toed sloth with nine cervical vertebrae (no i did not copy and paste this from wikipedia this is all from my vast brain matter).

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3-toed Sloth. Interestingly one of only three known mammals that have a different number of cervical vertebrae from the usual seven. Can you guess the other? No googling and NO it's not the giraffe.

Submitted By: DFrench on Nov 24, 2009