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An Appaloosas tail length is determined by genetics and how the horse is cared for.Many of the Appaloosas from older bloodlines have what is called a 'rat tail' as it has little to no hair on it, and what hair may be thee is typically thin, wispy and short.
However modern Appaloosas tend to have fuller and longer tails thanks to the Quarter horse, Thoroughbred and Arabian blood that was introduced to the breed when it was being 're-created'.

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9y ago

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