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Darwin's reason for using the phrase "natural selection" was to draw an important analogy with "artificial selection" as is done by pigeon-breeders. It is clea
by pekk 14y ago
Darwin's reason for using the phrase "natural selection" was to draw an important analogy with "artificial selection" as is done by pigeon-breeders.
It is clear that the intelligence of the breeder does not somehow directly reshape the pigeon. Rather, the way the breeder expresses his preferences is to SELECT the traits he is looking for. The only understanding required to see how this works in the case of natural selection is to see that nature analogously 'selects' some things over others, without intelligence on nature's part. In other words, the breeder is a "fitness landscape" for his captive pigeons. The natural fitness landscape may not choose the same things as a pigeon fancier would, but it does 'choose' some things like traits involved in surviving to breeding age, attracting mates, having sufficiently many healthy children, etc. Although it is natural, it is still selection.
This is not "intelligent evolutive design" just because a human being is involved in the experiment. Evolution is evolution and other members of the same species, or even members of other species, are part of the natural environment imposing selection pressure.
- dougk16 14y agoThis brings up a metaphysical point of whether humans really play a natural part in the evolutionary process anymore. For example, when mankind wipes out another species, in some sense you can say this is "natural", since evolution made us in the first place, and we're just doing what we do. In another sense, you can say we're assholes. Personally, I do see a line being drawn, starting a few thousands year ago and coming to a head now with bio-engineering and robotics, etc., where human-level intelligence represents the next major stage in how matter is organized over time. First was the stellar life-cycle, then biological evolution, and now we're joining the party. If you view it this way, I don't believe we can say that we're part of the natural environment anymore. Sorry, didn't mean to get all abstract...it's all physics anyway.