 It is worth noting that the motivation behind Dupré’s, Kitcher’s and Ereshefsky’s versions of pluralism is ontological not epistemological. Some authors (for example, Rosenberg 1994) suggest that we adopt pluralism because of our epistemological limitations. The world is exceedingly complex and we have limited cognitive abilities, so we should accept a plurality of simplified and inaccurate classifications of the world. The versions of species pluralism offered by Dupré, Kitcher, and Ereshefsky are not epistemologically driven. Evolutionary theory, a well substantiated theory, tells us that the organic world is multifaceted. According to Dupré, Kitcher, and Ereshefsky, species pluralism is a result of a fecundity of biological forces rather than a paucity of scientific information.