Chapter 14 - How Organisms Evolve

 

Natural Selection and Genetic Drift Modeling Exercise - At this site you can run simulations of natural selection and genetic drift on different organisms, including peppered moths, showing how allele frequencies will change. Enter allele frequencies and selection coefficients, and watch evolution take place. Experiment with different values.
Species and Speciation - The Talk.Origins.Archive site is a great resource. The article at this site describes instances of speciation.

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