Posted by:
Matt Harris
at Wed Jun 11 08:51:10 2003 [ Email Message ] [ Show All Posts by Matt Harris ]
???? I don't quite understand (Actually it just strikes me as odd) that C. d. tzabcan had a common ancestor with the "Terrificus group" as opposed to the "Durrisus group"?
Any insight as too why? I guess I'm thinking about them based on range and have this view in my that they should be a derivative of C. d. durissus, UNLESS maybe they all came from a common ancestor and C. d. tzaban, being restricted to the Yucatan, had no pressure from other pitvipers to evolve, thus remained relatively unchanged (Centrifugal speciation?), whereas, C. d. d., and C. d. culminatus were pressured by competition from other pitvipers to evolve ever so slightly but significantly so from C. d. terrificus???? Does that make sense?
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