Re: Hot-blooded marine reptiles

[Dann Pigdon <dannj@alphalink.com.au>]

On Tue, Jun 15th, 2010 at 9:22 AM, Mike Taylor <mike@indexdata.com> wrote:

> On 15 June 2010 00:04, Dann Pigdon <dannj@alphalink.com.au> wrote:
> > Who needs endothermy when you've got your own built-in central
> heating?
> 
> Endothermy IS your own built-in central heating.

Endothermy is more like setting fire to you wallpaper to keep warm than a 
'central heating 
system'. The system in tunas and sharks is elegant and reuses what would 
otherwise be wasted 
heat. Our outrageously leaky cells are more of a sledgehammer approach to 
homeothermy.

-- 
_____________________________________________________________

Dann Pigdon
GIS Specialist                         Australian Dinosaurs
Melbourne, Australia               http://home.alphalink.com.au/~dannj
_____________________________________________________________