The most interesting case is the Platinum ball python.
This snake was imported as an adult -- when bred to a normal snake, it produced snakes with a bolder, darker color pattern that the breeder called Lesser Platinum. Naturally, the breeder assumed that this was another co-dominant mutation, as they're called -- with lesser platinum being carriers of one copy of the gene, and platinum being carriers of 2 copies of the gene.
But when he bred the lesser platinum snakes together, he got the expected normals, lesser platinums and... pure white snakes with blue eyes, nothing like the platinum. Quite a surprise!
It turned out that the platinum snake (which his owner named the 'Platty Daddy') was a wild-caught COMBO MORPH -- he carried not only the 'lesser' mutation, but also another gene.
After a lot more trial breedings, the breeder identified the hidden 'Daddy' gene which produced the platinum snake. Carriers were hard to identify visually, but the gene was expressed when combined with the Lesser gene.
So, even combo morphs can occur in the wild -- it's just astonishingly rare.
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