 Even if “biodiversity” was made to be tractable (in the sense used above), eliminativists are suspicious of biological diversity being regarded as valuable. Diversity across different biological arrangements is even argued to be undesirable. Maier points to diversity of parasites and diseases being undesirable (Maier 2012). Diversity sometimes reduces the value of taxa as the rarity of a species tends to increase its value (Santana 2014). Morar, Toadvine, and Bohannan (2015) explain this is because it is “not life’s variety but rather life itself” (2015: 24) that is valuable (without making reference to insurance and options values of variety). The perception of a mismatch between ethical interests in the environment and diversity is emphasised by all eliminativists.