There's no separation between Yuma's and Cal Kings or Black Kings. The habitat is continuous and made up of river valleys and desert washes and flat desert. The only thing that explains the dark pattern of the Yuma (and I have seen many, especially at Yuma itself and along the way to Tucson) is an ancient blending with the Black King, because a Yuma pattern is half way between a Black King and a Cal King. I see this as the result of intergradation. And yes, locality specific Yuma's will produce offspring that look like them, same with intergrade Speckled/Desert kings (for the most part... there are and can always be exceptions to any rule).

See, without experience in many different habitats across the range of getula, and experience with many different subspecies and morphs, a person like yourself (or even Frank) could draw some erroneous conclusions about what is going on. Whether you studied genetics in college or not...

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