RE: Warm-Blooded debate

["Tomporowski, Steve" <Steve.Tomporowski@us.ms.philips.com>]

bruce wrote:

>Some dinosaurs did have sails similar to the pelycosaur Dimetrodon--why
>should those sails have been used for any different purpose?

>bruce

This idea of sails always struck me as a strange suggestion (use for 
warming).  I mean of over 800 dinosaur genera, on three (correct me if I'm 
wrong) had any semblance of a sail.  If the sail were so necessary, as 
warming for an ectotherm, why didn't a higher percentage of dinosaurs have 
them.  I don't think 'warming' is a valid argument.

Steve