[MD] Oneness, Dualism & Intellect
pholden at davtv.com
pholden at davtv.com
Mon Mar 12 08:04:17 PDT 2007
Quoting craigerb at comcast.net:
> [Platt]
> > What predictions does evolution make?
>
> > [Case]
> > It predicts that if you take two randomly selected populations from the same
> > species and isolate them from each other, when you come back in a couple of
> > hundred thousand years you will see different distributions of traits...
>
> We can show it even more efficiently (i.e., within Platt's lifetime.) Take a
> rapidly breeding species (like fruitflies) that all have the gene for gray
> coloring, but that gene can mutate to white or black. Put half the flies in a
> dark environment (where white & gray, but not black, stands out) & half in a light
> environment (where gray & black, but not white, stands out.) Add frogs. In each
> half, most offspring will be gray, with a few black & a few white. Generally, in
> the dark side, the white will be eaten first, next gray & the black will survive.
> And the opposite on the light side. Over generations the proportion of blacks on
> the dark side & whites on the light side will increase.
> The mutation of the gene for coloring may be random, but the selection by the
> frogs who to eat is not.
> Craig
Is this a report of an actual experiment or is it conjecture? Changing surface
characteristics of organisms is hardly evolution. Animal breeders do it all
the time. Can you conceive of a similar scenario in which a fruit fly becomes a
house fly, a horse fly or a dragon fly? That would be evolution.
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