You know, that's a good question. I'm sure there is, but there still isn't enough research, in the amateur hobby or professionally, to say one way or the other. But, for an example, the green tree pythons that come from the Aru islands, typically have lathes areas of high white scales down their back, but this seems almost impossible to reproduce in captivity. There have been theories about whatever food the neonates eat to uv levels. There are other localities of gtp's with similar coloration oddities as well. I think food has to have something to do with it.
With lizards, and apparently frogs, there is already one product on the market to enhance colors, mostly reds, yellows, & oranges, Repasy's Superpig. I've seen the effect on geckos & beardies. I'm hesitant to play with it much yet, but the thought has occurred to me as to what it may do to a snake.
