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Sinosauropteryx appears to have protofeathers, er..feather-like...THINGS.. It looked to down to me.
Could someone explain why it wasn't or couldn't have been down, or what the differences were between Sinosauropteryx's fluff and down?
Could down in baby birds be a primative trait?
Did down-like feathers evolve before "real" feathers?
Are there any books on this out there???????

Just curious.

Jessica W Amateur Paleontologist/Paleoartist

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