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4/30/2015 2:09:24 PM
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Thats not really how it works, if a species has a mutation that yields detrimental effects. That group will die out, it's natural selection 101.
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The mutation becomes a trait that can be transferred. Polar bears didn't exist until a mutation to a regular brown bear caused it's fur to be white. This white fur in a cold and white terrain gave it a hunting and camouflage advantage which caused it to thrive and survive. After mating, this trait was passed down and after generations of this, this trait became prominent. That's how it works. Same thing with all dogs, they all came from wolves that were domesticated and humans bred them based on their traits and behavior to create them for specific purposes. Over years if selective breeding, modern dog breeds are created. This is man made evolution where as the polar bear is natural.
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Modificato da Jack: 4/30/2015 3:23:07 PMWell said
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Then how do species change into other types of species?
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After a series of mutations and adaptations the organism cannot produce offspring with the original one making it a new species
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Modificato da EGO SUM OPTIMUS: 4/30/2015 2:39:05 PMAlright, alright, but what is it that mutates, genetically? And if it can't procreate, how does it further a species?
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Well genes have to copy and multiply, they have to copy billions of nitrogen bases in a specific order. Your cells do this very accurately, but it has to copy so many things. So a mistake is bound to happen which causes a mutation in the organism. This mutation can yeild a positive or negative effect. Natural selection will filter out the bad mutations, leaving only the ones that will thrive.
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To procreate they would have to inbreed then?
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Never said anything about inbreeding
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I know. I'm asking
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I never said anything that would require an organism to inbreed, explain why you think inbreeding would need to occur based on what I said.
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Because it can't further its species with others unless they had similar or compatible chromosomes, right? I just inferred that most likely mate would be a sibling. Please correct me if I'm wrong
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I really appreciate your open "attitude" I guess you could call it. We don't find to many people like that, I really appreciate it. :)
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I would think the entire species would be evolving at the same time. It wouldn't be just one animal evolving at a time.
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That seems too lucky of a scenario. They all got the same mutation at the same time?
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Idk man, this whole thread has my mind blown lol. Isn't this world awesome?
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Breeding with the same species is not like donating organs, your chromosomes are compatible with the same species and will always be able to produce offspring. Unless you have a disease of course. Heredity takes care of the gene pool, you don't need similar genes to produce successful offspring.
