[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 moq_discuss mailing list Listinfo, Unsubscribing etc. http://lists.moqtalk.org/listinfo.cgi/moq_discuss-moqtalk.org Archives: http://lists.moqtalk.org/pipermail/moq_discuss-moqtalk.org/ http://moq.org.uk/pipermail/moq_discuss_archive/
