Editing SimEarth (section)

===Taxa===
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A feature of the game is that all [[taxon|taxa]] of multicellular animals are on an equal footing, and thus it is possible to evolve, for example, sapient [[mollusc]]s.<ref>SimEarth User Manual, p. 143</ref> The two single-celled lifeform taxa, [[prokaryote]]s and [[eukaryote]]s (or [[bacteria]] and [[amoeba]]s, in the SNES version) are treated specially. Some examples of animal taxa include [[Radiata|radiates]] and [[cetaceans]] as well as more known organisms such as [[fish|fishes]] and [[birds]]. As an [[Easter egg (virtual)|Easter egg]], there is also [[self-replicating machine|machine life]], which can appear if a city of the highest technology level ([[Nanotechnology|Nanotech Age]]) is destroyed by a nuclear explosion. Machine life can thrive in any biome or environmental conditions, generally out-competing any other lifeforms present, and can itself eventually evolve intelligence and build cities. Additionally, there are Carniferns, which are mutated, [[carnivorous plant]]s, which can occur only naturally. Having an abundance of insects allows for these life-forms to develop. Carniferns are able to develop [[intelligence]] just as animals can. In addition to the familiar types, the long-extinct "[[Trilobozoa|trichordates]]" are included. The game states that "We [the game's developers] felt sorry for them, and are giving them a chance for survival in ''SimEarth''." [[Dinosaur]]s are another included taxon.