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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 (some people think
that a viral infection could have triggered mammalian placenta origin

The images about "tree man" (e.g.
have some superficially pennaceous-like structures.


Roberto Takata