Wednesday, January 23, 2008

How Evolution REALLY Works

Reposted from:,2133,n,n

Reposted from:

Click here to see an interactive game version of this:

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. Mutation 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, which 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, 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 has been observed in the lab and in nature. Beneficial mutations have been observed in the lab and in nature.

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:

To download the code for the simulation go to:

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