Re: Insulation does not = "Warm-blooded"

["David Marjanovic" <david.marjanovic@gmx.at>]

> > Can we assume that obligatory poikilothermy exists at insect sizes while
> > obligatory gigantothermy exists at  elephant size?
>
> I'd think so; at least all extant examples seem to appear that way. Course
> it would help if we had a few extant elephant sized reptiles around to
> compare this with.

Elephants are not gigantothermic, and terrestrial elephant-sized "reptiles"
(meaning "animals that Linnaeus would classify as reptiles if he'd see them
alive") are probably impossible. See my next post...

> What I don't see is any living examples of an animal that has leaky cell
> endothermy and no insulation to hold it. The only possible examples I can
> think of is naked mole rats, and last I heard, they were secondarily
> ectothermic, poikilothermic, bradymetabolic or whatever the hell the term
> for non-leaky cell endotherm is.

Naked mole rats have insulation -- their burrows. :-)