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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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