 According to views that explain evolution in terms of replicators, multiple kinds of replicators can support multiple and distinct evolutionary processes. The most prominent example of this line of thought concerns the view that genes are supplemented by memes that are units of cultural transmission, and each is manifested in a separate evolutionary process: biological evolution operating on lineages of genes and cultural evolution operating on lineages of memes. The extended replicator framework, in contrast, accepts the possibility of multiple kinds of replicators, but considers a single evolutionary process that determines the fate of lineages of different kinds of replicators by the success of their associated interactors and extended phenotypic effects (Sterelny et al. 1996: 378).