Evolution: Difference between revisions

'''Evolution''' (Japanese: '''{{tt|進化|しんか}}''' ''evolution'') is a process in which a {{OBP|Pokémon|species}} changes into a different species of Pokémon.

[[Professor Elm]] and [[Professor Rowan]] are the leading experts in Pokémon evolution. According to Rowan's research, over 90% of all Pokémon are connected to at least one other through evolution. Currently, the actual percentage is {{#expr:(1-(

{{PAGESINCAT:Pokémon that are not part of an evolutionary line}}-2)/{{numpkmn}})*100 round 0}}% of all known Pokémon.<!--subtract 2 due to Pichu and Pikachu--> Rowan's research focuses on whether evolution is a form of maturity in Pokémon, and looking at the implications of the process on [[Legendary Pokémon]] (which could not evolve in [[Generation IV]], when Rowan debuted).

[[File:Piplup family anime.png|thumb|240px|right|Piplup evolution family in the anime]]

An evolution family is a group of Pokémon who are all related by evolution. The species at the lowest evolutionary stage in an evolutionary family can ultimately evolve into any member of the evolutionary family.

Pokémon evolutionary families have anywhere between one and three stages. In a one-stage family, there is only a single Pokémon that cannot evolve. In a two-stage family, any member of the family can evolve at most once, from the unevolved form into one of the evolved forms. In a three-stage family, at least one of the evolved forms can evolve once again.

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{{main|Methods of evolution}}

In the [[core series]] games, Pokémon normally only evolve after one of three events:

In addition to the trigger, many Pokémon have one or more additional requirements for them to be able to evolve. These include:

Some evolutions are dependent on the Pokémon's [[gender]]. For example, only female {{p|Combee}} can evolve into {{p|Vespiquen}}—male Combee cannot evolve at all. Similarly, all {{p|Snorunt}} can evolve into {{p|Glalie}}, but only female Snorunt can evolve into {{p|Froslass}}. On the other hand, male {{p|Burmy}} can only evolve into {{p|Mothim}}, while female Burmy can only evolve into {{p|Wormadam}}.

For some evolutions into Pokémon with multiple forms, the form of the evolved Pokémon depends on how it evolved. For example, {{p|Wormadam}}'s cloak depends on the cloak {{p|Burmy}} had when it evolved. Similarly, the form of {{p|Toxtricity}} which {{p|Toxel}} evolves into depends on its [[Nature]].

===Abilities===

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===Pokémon Stadium and Pokémon Stadium 2===

Pokémon on a Game Boy or Game Boy Color game can evolve in [[Pokémon Stadium (English)|Pokémon Stadium]] or [[Pokémon Stadium 2]] by fulfilling the conditions required for evolution, such as using an Evolution stone, trading a Pokémon, or using [[Rare Candy]] to level up a Pokémon to the required evolution, as in the main series. This can be done in [[White City]]'s [[Pokémon Lab (Stadium)|Laboratory]]. However, items cannot be used to evolve Pokémon in the original Japanese [[Pokémon Stadium (Japanese)|Pokémon Stadium]], as level up evolutions are ignored, and evolution stones are not visible in the item list when selecting an item to use on a Pokémon.

In Pokémon XD: Gale of Darkness, because the game does not have a [[time]] mechanic, the player's {{p|Eevee}} cannot evolve into {{p|Espeon}} or {{p|Umbreon}} through the same means as the core series games. Early in the game, the player can choose one of five [[Evolution item]]s, each of which will cause Eevee to evolve into a different Pokémon. Among these items are the exclusive [[Sun Shard]] and [[Moon Shard]], [[Key Item]]s that allow Eevee to evolve into Espeon or Umbreon, respectively, after it levels up with high [[friendship]].

===Pokémon Conquest===