I used to raise dogs professionally. (Golden retrievers if anyone is interested.) Get involved in the business, or any biological industry, and youíll see that selective breeding works.
My thing was breeding dogs with short haired coats. Everyone always complains about the hair littering the couch when their golden starts to shed, so I decided to do something about it. I simply chose dogs with short hair for breeding while keeping those with longer hair penned up. I didnít do it long enough to see a significant change, but just a glance at all the different breeds out there will show that it would have worked eventually.
That is pretty much at the heart of evolution. Some sort of environmental cause either reduces the chance for organisms with a certain inherited trait from breeding, or it increases the chances for individuals from the same species with a different trait. Undesired traits are bred out of the species while those that increase the chance of hooking up become commonplace. This is, in fact, the basis for just about all of our modern biological science.
Today a judge in PA banned the teaching of Intelligent Design in public school biology classes, saying that it was thinly disguised religion.
Iím certainly not a biologist by any stretch of the imagination, but I have been paying attention to the debate. The one thing that struck me most strongly while reading the arguments in favor of ID was that they really were attacks against evolutionary theory. So far I havenít come across a single solid fact to support the idea, just questions as to the gap in our knowledge of how evolution works.
Some people were rather worried about this case, but I canít include myself among them. These things have a way of working themselves out, one way or another. If the judge had ruled the other way, then graduates from PA universities would have had a real problem finding positions in the medical and biological fields. Itís true that higher education has little to do with what is taught in public grade school, but they probably would have been tarred by the same brush.