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Re: reopening the can



Betty Cunningham wrote:
> 
> Bats are NEITHER ectotherms or endotherms; they are facultative
> heterotherms (thay can allow their body temperature to decrease if the
> ambient temperature drops, so as to conserve energy), and have a
> sprawling posture, and are active flyers.
> 
> What now?
> 
> -Betty Cunningham
> 
> Colette H. Adams wrote:
> > Archaeopteryx was an endotherm.  This hypothesis is one that I am quite
> > confident of, for all kinds of reasons.  Rather than launch into a long
> > list of them, I will simply point out that all living ectothermic tetrapods
> > have sprawling or partially erect postures.  Far from developing a fully
> > erect posture, many such animals have evolved smaller legs, even to the
> > point of leglessness.  Even fast, relatively active ectotherms, such as
> > whiptail lizards, have relatively short legs that sprawl to the side.  Why?
Humans can drop their temperature if trained properly.  Birds can raise
and lower their temperature.  The archives have a great deal of this
topic.

Michael Teuton