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Re: Reptile skin comparisons



Dann Pigdon wrote:

> This is interesting. I have always been struck by the similarity between
> the pattern of throat scales when a snake is swallowing something
> large (when they are separated by areas of skin) and the pattern of
> throat feathers on male frigate birds when they blow up their throat
> pouches. Analogous structures, or feathers as derived scales? Am I
> clutching at straws? You be the judge.

Well, from what I know, which is comparitively little, compared to most of you,
feathers are derived scales, split to allow airflow, then bonded via the
mini-spines.

--
Leonidus A.K. Giganotosaurus
Dinosaurium, Xenorobotics & NWP:
http://www.geocities.com/Area51/Hollow/7065/ (under heavy contruction)
alex@voyager.net