Daddy4UdderSlut -> RE: God, Darwin, and Kansas (8/5/2006 4:48:45 PM)
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ORIGINAL: amastermind I don't know the details of the debate in Kansas but I do know this: Evolution is just a theory, and not a very good one at that. There has been no serious challenge to Evolution that I am aware of, ever. If you are aware of anything that has been published in reputable scientific research journals (rather than books out of Random House or position papers by religious think tanks), I'd like to see them. quote:
The differences between breeds of dogs that have been bred for hundreds of years, disappear with a very small number of generations when the dogs are allowed to breed freely. Thus, nature seems to work against forming new species. No. Breeds of dogs arose from artificial manipulation of the genome by dog breeders over the centuries. However, these genetic variations actually didn't involve *any* increase in genetic fitness (essentially, the ability to survive until and carry out reproduction to propagate copies of the genome into future generations). Therefore, of course such mutations would simply dissappear in the wild - they confer no evolutionary advantage! quote:
There is no fossil evidence of transitory animals in between two different species that supposedly originated from the same one. This statement is a little imprecise, but maybe I can help. The genetic evolutionary path is not a linear sequence over time. Instead, it's a tree, with branches occuring as mutations arise that confer a genetic advantage under prevailing environmental conditions. For example, scientists don't say that humans arose from monkeys. Rather, they say that both humans and monkeys share common genetic ancestors, now extinct. The evidence *is* there, both in the fossil record, and in the DNA record, and not only along the line of primates, but virtually all known organisms. quote:
Random mutation, the proposed mechanism for creating species, doesn't seem very likely. For one thing, there really isn't enough time for the process to work. Even a few billion years is not enough time for enough favorabe mutations to have occured. It's really a matter of generations, not years. And if you want to see evolution occuring today, that's trivial. Look at how bacteria (which have a short generational period) adapt to evade antibiotic treatments in months. Look at how AIDs or cancer adapts to avoid antiviral medications or anticancer agents within a single patient's treatment. These are examples of evolution producing significant changes in organisms, to adapt to environmental pressures, over just dozens of generations, right in front of your eyes, today - it's everywhere, not just in the fossil record. Evolution isn't finished, and it never will be - it's intrinsic to the makeup of life here on earth. Noone started it, and noone can stop it. quote:
Furthermore, most mutations are harmful, not beneficial. Okay, now that statement is actually true. But first, and most importantly, that has nothing to do with whether mutation, crossover, and selection act as a mechanism for evolution. Every mututation doesn't need to work for each and every individual. It *only* needs to work for one, actually. In numerical optimization, we also use routinely use random changes to optimize complex functions - it works and it works robustly. Furthermore, your DNA actually contains multiple copies of many of its genes. But, many of these copies have themselves become mutated over time to adopt new, but related functions. See how that works? With the redundancy of multiple copies of genes, mutations become "allowed" even in genes coding for critical proteins, because if one is disabled, the other copy will still carry out the essential function. I could go on... quote:
Finally, there is no conflict between science and religion. They answer two different questions. Here, I would agree. Scientific theory accounts for the natural world. Religious "theory" accounts for the spiritual world. They are not really conflicting, because when understood properly, they are not even related. It's only when people attempt to use the Bible to explain the natural world that they come into conflict.
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