I have read several posts asserting that mutation and natural selection cannot add complexity or useful functions to the genome. I'd like to add a link to an experiment that proves them wrong, and also teaches us a lot about how evolution works - the E-coli long term evolution experiment. http://en.wikipedia.org/wiki/E._coli_long-term_evolution_experiment What is interesting is that it disproves several assertations I have seen made by creations, namely 1. Evolution has never been observed in the lab - clearly it has, from this link. 2. Evolution does not add new functionality, it merely shifts around the existing - again disproved soundly by the link All in all, a fascinating experiment which should be more widely known.