From: usenet@baradel.demon.co.uk   
      
   In message , Gerry Quinn   
    writes   
   >   
   >One assumes large brains evolved for a purpose.  Brains are expensive to   
   >run and don't appear to be useful as nutrient stores.  The heat they   
   >generate is largely wasted due to their position in the body.   
   >   
   >Why do YOU think humans might have evolved relatively large brains?  Can   
   >you think of plausible reasons not to do with intelligence?   
   >   
   But a bigger brain doesn't necessarily mean more intelligence. Which is   
   more intelligent, an African Grey Parrot or a rhinoceros? Which has the   
   bigger brain?   
      
   Helen   
   --   
   Helen, Gwynedd, Wales *** http://www.baradel.demon.co.uk   
      
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