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Re: New refs (long)
> <The fact that some dinosaurs were feathered and (as far we can tell) all
dinosaurs were not is positive evidence for metabolic variation within the
> Like the fact that some placentals were furry and others (most assuredly)
are not proves that some placentals had a reptilian RMR? This line of
reasoning may prove telling; one can compensate with fat deposits and
behavioral regulation, but if we find a few unfeathered hypsys, etc, I would
admit that it is evidence in favor of your supposition, though not
There's already the LiÃoning _Psittacosaurus_. Except the bristles, it shows
a scaly skin.
Cheers - Aspidel.