RE: Peppered Moths and Evolution

Arthur V. Chadwick (chadwicka@swau.edu)
Fri, 13 Nov 1998 10:04:27 -0800

At 09:37 PM 11/12/98 -0800, Pim wrote:

>It's based upon observational data. If that is not experimental what is...

I thought experimentation was a phase that followed observation, in which
the experimenter manipulated the conditions to test for the effects of a
variable. Maybe this view of experimentation is now outmoded, but I think not.
Art
http://biology.swau.edu