On Thu, 09 Jul 2009 16:09:40 -0500, Day, Wally <[log in to unmask]> wrote:
>
>>  Nonetheless, the Apache men were described by the writer as being
>> wirey -and well muscled, as they stood in the snow absolutely naked  
>> without appearing to be cold.
>
> A couple (few?) years ago there was a documentary ...While the host and  
> crew all had heavy parkas and mittens on - and appreared to be freezing  
> their butts off  - the "natives" wore lighweight sweaters and nothing on  
> their hands. It was explained that the herders' had adapted to their  
> environment by doubling (or even tripling) the number of capillaries in  
> their hands/arms. Better bloodflow, more transferred internal heat.

Are such adaptations genetic or environmental?  If the people in the crew  
lived there, and tried to dress like the native as much as possible, would  
they too develop this adaptation after some number of seasons?

--
   Robert Kesterson
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