This blog provides background for and explanation of current topics in science.

Friday, April 23, 2010

Does Evolution Imply Progress?

Evolution isn't about progress.  It is about species adapting to local environments.  If a mutation leads to a member of a species leaving more offspring with this mutation, then the mutation will spread through the local population, whatever the size of "local" is - it might be a few square miles or thousands of square miles - it depends on the species.... [Read more...]

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