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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