Culture Darwinism Evolution Intelligent Design

Fish evolve in a single generation? Not so fast…

Timothy Standish: The authors seem to have found that if you already have alleles that adapt you to a certain set of conditions, then you will be able to rapidly adapt to those conditions. The speed is impressive, but you could argue that the speed with which natural selection can work is not the real question. The real question is, “How fast can those alleles that make organisms more fit arise de novo in a population that doesn’t already have them?”