Cats
Some suggested that the cats are "longtailed bobtails" i.e.
have a kinked section of tail close to the body, combined with a full-length tail with normal
vertebrae beyond the kinked section; the kink would lift the tail upwards and the normal
section would hang over the back or flank. In "Variation of Animals and Plants Under
Domestication" Charles Darwin wrote: " I have seen a cat which always carried its tail flat on
its back when pleased."
Although judges examining the early American Ringtails had reported the trait to be very
rare, this is not strictly correct. Judges see pedigree cats and pedigree cats are bred for
uniformity and adherence to a standard. This means rogue genes have been eliminated
generations ago. The genes for curly tails would have been weeded out of pedigree lines. In
addition, a curly tail would be a deviation from the standard (and might be considered a sign
of genetic impurity in the breed) hence the cats would not be entered in shows, except
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