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Re: Warm-Blooded debate

To: NJPharris@aol.com, tons@ccs.netside.com, dinosaur@usc.edu
Subject: Re: Warm-Blooded debate
From: Dinogeorge@aol.com
Date: Wed, 25 Jun 1997 20:57:26 -0400 (EDT)
Reply-to: Dinogeorge@aol.com
Sender: owner-dinosaur@usc.edu

In a message dated 97-06-25 16:59:32 EDT, NJPharris@AOL.COM writes:

<< Well, no, not really, because there are animals out there today
(monotremes
 and a few types of eutherians) that are endothermic and have a
four-chambered
 heart but have only a "semi-improved" stance! >>

Here would be an example of a reversal: their ancestors would have had the
erect stance, and it would have been lost in their modern descendants after
the endothermy and the quadricameral heart evolved.

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