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Re: Could a viral infection have triggered feather evolution?
Well, surely an almost entirely speculative subject, but I was
wondering if a viral infection could have being at center of the
feather origin in maniraptorian dinosaur lineage
The structures in question are warts. Feathers are elongated and opened
(some people think that a viral infection could have triggered
mammalian placenta origin too).
Well, one of the gene promoters involved comes from an endogenous