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Re: CROCODYLOMORPH ENDOTHERMY
On Thu, 25 Jan 1996 Dinogeorge@aol.com wrote:
> In a message dated 96-01-25 17:47:56 EST, pharrinj@PLU.edu (Nicholas J.
> Pharris) writes:
> >I'm also not convinced that ectotherms would need or could use "long,
> >erect limbs and tall bodies," hence my suspicion that these features
> >evolved in endothermic crocodilian predecessors (and that all other
> >animals which show these feautures--other thecodontians, all dinosaurs,
> >and all therapsids, including mammals--were/are also endothermic to one
> >degree or another).
> So extant crocodylians are secondarily ectothermic??
Just as they are secondarily sprawling, have secondarily short necks and
limbs, and have a secondarily imperfectly divided heart. Anyway, I heard
someone mention that crocs do retain *some* heat-producing capability.
Pacific Lutheran University
Tacoma, WA 98447
"If you can't convince them, confuse them." -- Harry S. Truman