You should read through the article that Paul linked up to this conversation it opens quite a big door, I see no reason why in reptiles this can't happen especially when there may be a few examples already.. Maybe Paradoxing is exactly this Mosaicing ability, afterall reptiles are not as complex as humans.. Pete Kahl has the Paradox stripe. RDR the Paradox snow, I have a paradox anery, and I have seen pics of burm paradoxing and other pythons and corn snakes. Now let's look into this a little further.
Say there are two ways of these odd animals to develope, The first and more rare and extreme variation being bipaternity sperm fertilization ie. Mosaic, and the other is incomplete homzygous genenetics not aligning correctly causing only a small area to be a single color like some paradox albino balls. There was one paradox albino ball that comes under the Mosaic idea and there are some that come under incomplete homozygous idea. After reading the article and then going out and looking up so more about this idea I have to say there's quite a bit out there about bipaternity sperm fertilization that seems to hold water....

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