I understand what you mean about the morph thing.. lol..
not sure if you understand the pastel trait, but a colorful boa is not a pastel - color is not used to define a pastel...
I have many colorful boas much more colorful than my pastels or most I have seen for that matter..
The definition is moreso a reduction in melanin, reduced pattern/speckling, washed out sides (medallions/diamonds) and so on..
when this occurs, it enables more color, if present, to show, since it is not covered in a blanket of brown and black. However, by no means must a boa be high in color to be pastel.
If you see that boa in the pic, its side medallions are washed out, and in some areas, hardly visible! There are faint outlines which appear to be red, and the centers are primarily 'missing' or clear.. just one example/expressive characteristic...
this animals side pattern is cleaner than many hypos even advertised in this page.
Whether or not it was produced from genetic pastels and whether or not it can produce pastels, and at what ratio, is what's questionable here.
Jeff Ronne's Pastel Dreams show outrageous color mostly in due to close to 20 years of arduous selective breeding - his pastels are testament to selective breeding.
Thanks - take care - Joe
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Thanks and take care - Joe Rollo
'Tis not the stongest of the species that will eventually survive, nor the most intelligent, but the one most responsive to change' Charles Darwin