clipka wrote:
> For instance, such a gene may have affected some aspect of visual appearance
> which our common ancestors did not care much about, but which may have had a
> beneficial side-effect for the new 46-chromosome group, therefore becoming more
> and more frequent among it as the groups evolved apart; another mutation may
> then have spread in the 48-chromosome group to consider this visual feature
> unpleasant, further reducing the interbreeding rate and at the same time
> beginning to extinguishing that feature in the 48-chromosome group.
> 

This reminds me of the video I saw recently, and computer generated 
extrapolation of the changes in morphology between the earliest human 
ancestor skull, and a modern human, showing how each "tiny" change can, 
over time, result in such a drastic one.

Mind, the music is kind of stupid, and the words they flash up once in a 
while are kind of lame, but, otherwise:

http://www.youtube.com/watch?v=EcqA8wEljPM

Ah, they have a "class room" version without the lame stuff in it too:

http://www.youtube.com/watch?v=GrhYLvNeQd4

-- 
void main () {

     if version = "Vista" {
       call slow_by_half();
       call DRM_everything();
     }
     call functional_code();
   }
   else
     call crash_windows();
}

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