My sister in law read something recently about extra scutes. It suggested that millions of years ago tortoises did have more scutes, and when we see extra scutes now , it is just a throw back to that. It was just a theory, no one is saying it is so.
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Suze. 
3 THB, Sammy, Jemima, & Phoebe
7 Marginated, Tabitha, Ptolome, Tatiana, Noah,Lottey, Lulu & Poppy
1 TGG (Emma) RIP Feb 2012
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