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How Evolution REALLY Works, Part I
Link to interactive evolution simulator: http://www.freewebs.com/scikidus/evolution/evoflash.html How Evolution Works the GAME. A must see!!! KevinPluck has turned this simulation into an interactive game. You are the predator and the squares evolve to avoid you eating them. http://www.kevinpluck.net/evolution-versus-intelligence/ The world is full of misinformation. Interesting how most of the Young Earth Creationists and people pushing Intelligent Design, clearly don't have an education in the biological sciences. Evolution is the product of Natural Selection AND Mutation. Either alone does nothing. Evolution is the logical outcome of the world around us. Organisms that store their genetic information in DNA are guaranteed to have mutations. Mutations produce NEW variation. Reproducing organisms are guaranteed to compete for resources. Competition between variable organisms leads to natural selection, i.e. those organisms that possess variation that gives then an advantage will out compete those who don't. Organisms with deleterious variation will lose to all other organisms. In this way the ENVIRONMENT SELECTS the best organisms. This has the effect of passing beneficial mutations on to the next generation and removing deleterious ones. Over time natural selection will lead to a net shift in the genome of the population, i.e. evolution. Yes, this really is evolution. Changes in allele frequency, changes in gene expression, and changes in transcription factor binding efficiency, they are all evolution. Logic predicts evolution, and observation confirms it. Evolution has been observed in the lab and in nature. Speciation (macroevolution) has been observed in the lab and in nature. Large changes in appearance have been observed in the lab and in nature. Beneficial mutations have been observed in the lab and in nature. CORRECTION: Some have noted that Evolution need not include Natural Selection, as genetic drift does result in evolution. I agree that genetic drift is evolution, and should stress that Natural Selection is just one mechanism for evolution. Natural Selection + Random Mutation = Evolution Genetic Drift + Random Mutation = Evolution Both are true. To see an example of how genetic drift can lead to a speciation event, i.e. macroevolution, check out an old video of mine http://www.youtube.com/watch?v=Nnu-O5x_pRU To deny evolution is to deny direct observation. It is as silly as denying that the sky is blue. To download this video go to: http://www.mediafire.com/?9lg2il2mqgw To download the code for the simulation go to: http://www.mediafire.com/?2lbzod2myiw To read the Dover Trial Transcript go to: http://www.aclupa.org/legal/legaldocket/intelligentdesigncase/dovertrialtranscripts.htm To see the evidence presented in the trial go to: http://www2.ncseweb.org/kvd/ If you wish to translate this video you can download the PowerPoint file from: http://www.mediafire.com/?yw0zdtimi2w Learn the facts, spread the truth, and most importantly, Think About It.
Tags // Evolution Intelligent Design ID Creation Fact Logic Education Behe Simulation Genetic DNA Mutation Natural Selection
Added: May 27, 2009, 6:18 pm
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How Evolution REALLY Works, Part II
Natural Selection prevents deleterious mutations from spreading throughout a population while fostering the spread of beneficial mutations. One can get populations to do many things with this simulator. Just remember, if your parameters are not realistic, your solution will not represent reality. To download the Population Simulator go to: http://www.mediafire.com/?z2p2ydew1id To download this video go to: http://www.mediafire.com/?zqmzezllkyv If you wish to translate this video you can download the PowerPoint file from: http://www.mediafire.com/?yexml12mkgi Predator evolution is simulated by scaling the populations mean survival probability back to the attrition rate. Example. If the Attrition rate is 0.9 and every member of the population has a number of beneficial mutations then the mean probability of death may be 0.8. If the predators were allowed to evolve (as they would in nature) that would scale the mean death probability back to 0.9. This is known as the Red Queen Hypothesis. The organisms have to keep evolving just to stand still. Without predator evolution enough beneficial mutations can pile up to lower the death probability to 0 (or nearly so). This would stop selection as every member would live to mate. Error: I stated that without selection, evolution stops. This is not entirely true. Genetic drift operates in the absence of selection. It is one mechanism by which neutral mutations can become fixed in a populations. Think about it.
Tags // Evolution Natural Selection Creation Intelligent Design Simulation Mutation Beneficial Deleterious Population DNA
Added: May 27, 2009, 6:24 pm
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