Category:Wikibooks Pokédex:Pokémon by stage
This category and its subcategories categorizes the Pokémon by their stage of evolution. The lowest form is Basic Pokémon, while Stage 1 and Stage 2 Pokémon represent higher levels of evolution. However, in later games certain Pokémon may be moved up a stage in order to accomodate a newly-introduced (often basic) form, and thus a Pokémon may be classified as being part of more than one stage.
The Baby Pokémon designation is a special designation: these are Pokémon that are not usually found in the wild - instead, one must obtain a more evolved form and breed in order to obtain this Pokémon. These Pokémon are often small and are of the Basic stage, thus giving the stage its name.