 Dawkins argued that replication in biological evolution occurs exclusively at the level of the genetic material. The term “replication” refers first and foremost to copying, and genes are the self-replicating molecules of biology. Some critics (e.g., Lewontin 1991: 48) interpreted this to mean that a strand of DNA placed on a glass slide might start replicating all on its own. Of course, no biologist has ever held such a view. Genes do replicate themselves, but only with the aid of highly complicated molecular machinery. Too often, however, the importance of this machinery has gone unnoticed. To be sure, when we make copies on a photocopier, we are interested in the texts, figures, or just scrawls that appear on these sheets of paper. We are not interested in how the photocopier works, even if it does all the work.