You are right, but I didn't state they are different species. I just wanted to demonstrate that systems like these (species, subspecies and all the other taxa) have a lot of deficiencies(they have no accurate definiton until these days!!!) , so it is more complex than "you see a boa and put it in a taxonomy group like subspecies".
There are boas in the wild that are showing characteristics of 2 or even more subspecies. You may can't recognise these boas as a separate subspecies. However, these populations should be considered just as pure boas as the others that can be recognised as subspecies. That was my original point that I wanted to clear. And that's why it doesn't make any sense to talk about "interbreeding", "crossbreeding", "mixing", "overlaping" in the wild. Because this is not what actually happens.

Adam

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