On those long sea voyages, maybe Darwin was simply thinking of girls or something, eh?!
(Denny Crane: "I Don't Want To Socialize With A Pinko Liberal Democrat Commie. Say What You Like About Republicans. We Stick To Our Convictions. Even When We Know We're Dead Wrong.")
Name one breed and site evidence.
1) That's artificial selection
So is the fruit fly experiment in the article and I believe the proof of most theory is done artificially in the laboratory.
3) This artificial selection is a great support for natural selection
I have a hard time seeing it that way. All of the evidence seems to point the other way.
1) Natural selection isn't defined by speciation. It's defined by adaptation to the environment. There is nothing about the fact that people can interbreed that goes against this. 2) A few thousand years is a very short time for speciation to happen. Isolation is not a guarantee that speciation will happen.
From the article.
In the last 20 years, studies of a number of specific species have demonstrated that natural selection can cause sub-populations to adapt to new environments in ways that reduce their ability to interbreed, an essential first step in the formation of a new species. However, biologists have not known whether these cases represent special exceptions or illustrate a general rule.
The article seem to suggest that the definitive proof of evolution would be the sub-populations to adapt to new environments in ways that reduce their ability to interbreed and that has always been my understanding of Darwins theory (remember his finches).
Darwin was well aware of selective breeding, far more than you. People have not been trying to make new species. And we have been at it for only a very short time even if we were. That being said, scientists have witnessed speciation.
Estimates I have read is that dogs have been domesticated for between 50 and 100,000 years thats between 25 and 50 thousand generations. Specialized breeding would have started about 5 to 8 thousand years ago or 2.5 to 4 thousand generations ago with no change in the ability to breed with the root population.
Intension has nothing to do with it; according to Darwins theory dogs should be a new species and should not be able to breed with wolves.