SeveredNeuron -> RE: God, Darwin, and Kansas (11/13/2006 3:07:30 PM)
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I always find these types of topics quite interesting, and ofcourse what other people seem to say about them... The public opinion is usually skewed by media (whether you chose to believe it or not, its true). Here are a few points: - Natrual selection is a proven mechanism which we can see from Drosophila Melanogaster (thats fruitfly btw) to humans, - There was something before the big bang, but i am sure you cant tell me, so why do you expect someone else to? They are trying hard on it, dont worry. - The fossil record does indeed show evidence of evolution, why do you think it was used as primary evidence for the case of evolution? Dont worry, these theories are pretty sound, what 'normal non science geek people' tend to forget that in scientific literature the term 'theory' doesnt mean like in normal literature, something that isnt completely true and may be disproven, thats called a hypothesis in science. A theory is something that has been disputed over and over again (evolution over the last 100 years or so) and no-one has been able to disprove it.. Now if you can, please publish in Science or Nature and stun the scientific world, but i am sure you will find that someone else a long time ago has probably already thought up of it, tested it, and realised that evolution was right. Back to the fossil record. The problem with the fossil record is that we dont actually know all of it... we know a very small portion of it, and if you know how fossils are made, they need perfect anaerobic conditions to form, so.. they are actually pretty rare (which is why archeologists and the like tend to go a bit nutty about them). It kind of makes sense in light of this that we havent found fossils of all the species because alot were probably not fossilied. - the dinosaurs just didnt come out of nowhere, in evolution, a 'short' time might be hundreds of millions of years, because thats how long it takes for a small changes to accumulate (microevolution) to form bigger changes (macroevolution). Let me define something about evolution.. the changes which cause evolution are called mutations, they arent mutations of the frankenstein sense, they are nucleotide deletions, substitutions or additions within the genome, and it HAS to happen in germ cells (eggs/sperm) otherwise the changes arent transmitted to the next generation. So.. this is kinda rare.. no not really, we are all mutants in a sense since we all have about 3 mutations per humans.. (so we really are all individuals) Can you see how incredible our DNA replicating system has to be to only make 3 mutations (this is a rough ball park figure, theres others out there.. and this is an actual phenotypic mutation, not a silent one too).. its pretty incredible since we duplicate our cells ALOT. many millions of times and we have lots of cells. These changes then have to be chosen for (this is where natrual selection comes into it), and then they have to transgress through the populations.. (this is where lots of complex trait stuff comes in.. v.boring) and then become a dominant trait within the population. Now evolution of a new species is something completely difference and occurs when two populations are segregated from each other and evolve in different environments changing them in some way. I have to go, but a few more points. - Can you show me any scientific evidence for the existance for magic/k? You are free to believe what you wish, i just wanted to put my 2/3/6/8 cents worth in :). Wish i had more time to blab, but thats just coz i am a geek :P Have fun everyone! --Ania
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