Most people do not even have much more than a rudimentary understanding of over simplified,very basic genetic theory....every single thing that we currently know about genetics & apply to boa constrictors is derived from a fair handful of conveniently simple mutations that most of us like to capsulate into absolutes...the nature of these things is not bound by the "laws" that we put forth.the "rules" are based only on our attempt to describe what is happening,based on what we perceive to have happened before in other cases,which does not allow for the possibilities of anything new,or,previously unknown. I find it interesting that we now begin to see "possible Jungles",and,what I call "lesser expressive" examples of the trait that are presumed to be gene carriers...I remember raising the possibility of this a few years ago,and,several people quickly discounted it,"oh no,you'll KNOW the Jungles from the "normals"...it's always pleasant when things fit nicely into the convenience of theory,however the simple fact is that with variable traits you will inevitably see variability...

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