View source for Methods of Evolution

There are numerous '''methods of evolution''' which define how and when {{OBP|Pokémon|species}} [[Evolution|evolve]]. Most Pokémon will evolve by leveling up while others evolve through specific means, such as being traded, achieving a certain amount of friendship or leveling at certain times, among others.

==In the core series==
In the [[core series]] games, Pokémon normally only evolve after one of three events:
*[[List of Pokémon that evolve at or above a certain level|Gaining a level]]
*{{cat|Pokémon that evolve by using an item|Being exposed to an item}} (such as an [[Evolution stone]])
*{{cat|Pokémon that evolve through trading|Being traded}}

Prior to [[Generation VIII]], the above were the only triggers to evolve Pokémon. However, {{g|Sword and Shield}} introduced four new triggers, each only used by a very select few Pokémon species:
*Spinning and striking a pose with the Pokémon in the party
*The Pokémon performing a specific action in battle
*Traveling through a specific location with the Pokémon in the party
*Observing a specific object in a specific location with the Pokémon in the party

When the appropriate trigger occurs, if the Pokémon meets the requirements to evolve, it will do so. However, if a Pokémon meets the trigger in battle, it will only evolve after the battle ends.

The [[Everstone]] prevents a Pokémon's evolution:
*In Generation II, a Pokémon holding an Everstone (including Kadabra) cannot evolve by any method.
*In Generation III, trade evolutions are affected by the {{DL|List of glitches (Generation III)|held item loss glitch}}: if {{p|Kadabra}}, {{p|Machoke}}, {{p|Graveler}}, or {{p|Haunter}} is traded while holding any item (including an Everstone), that Pokémon will evolve and its held item will be permanently lost.
*From [[Generation IV]] onwards, the Everstone does not prevent a Pokémon evolving via [[Evolution stone]]. It also fails to prevent {{p|Kadabra}} from evolving.
*If either {{p|Karrablast}} or {{p|Shelmet}} holds an Everstone when traded for the other, neither can evolve.

===Leveling up===
[[Level]]ing up is the most common trigger for evolution. Evolution by level up can be triggered by gaining [[experience]] in battle or by using a [[Rare Candy]]; leveling up in [[Pokémon Day Care]] or [[PokéPelago|Isle Evelup]] will not trigger evolution, although Pokémon leveled up in these ways can still evolve if leveled up by battle or a Rare Candy afterwards. All Pokémon that evolve by leveling up have at least one requirement that must be met when leveled up in order to evolve, the most common being that the Pokémon must be at least a specific level after leveling up. Other requirements include knowing a specific move, being in a specific location, or holding a specific item. A Pokémon that meets its level-up evolution requirements will always attempt to evolve when it is leveled up in battle or by using a Rare Candy, regardless of whether it had previously been prevented from evolving.

If a Pokémon levels up in battle, it will not evolve until the battle is over. A Pokémon can only evolve once after a battle or consuming a Rare Candy, even if it gained multiple levels. Even if a Pokémon is fainted at the end of the battle, if it leveled up when it met its evolution requirements during the battle, it will still evolve, but will not be revived from [[fainting]]. However, prior to [[Generation VI]], the player's Pokémon would not evolve if player lost the battle, even if its evolution requirements were met.

Starting in [[Generation VIII]], if a [[Rare Candy]] is used on a level 100 Pokémon that evolves by leveling up and currently meets its evolution requirements, it will evolve (without gaining a level).

In [[Pokémon Legends: Arceus]], evolution can be performed at any time, so long as the conditions are met, instead of requiring a level up.

====At or above a certain level====
{{main|List of Pokémon that evolve at or above a certain level}}
Most Pokémon evolve when they reach or surpass a certain level. Once such a Pokémon has reached the required level, unless there are other requirements for its evolution, it will attempt to evolve after every battle in which it levels up and every time it gains a level from a Rare Candy.

{| style="margin:auto; text-align:center; {{roundy}} border: 2px solid #{{grass color dark}}; background: #{{grass color}};"
|-
! colspan="3" | Leveling up
|-
| style="{{roundy}} background: #{{grass color light}}" | [[File:152Chikorita.png|96px]]<br>{{pcolor|Chikorita|{{grass color dark}}}}
| {{bag/s|Rare Candy|SV}}<br>→<br>Level 16+
| style="{{roundy}} background: #{{grass color light}}" | [[File:153Bayleef.png|96px]]<br>{{pcolor|Bayleef|{{grass color dark}}}}
|}{{-}}

====When friendship is high====
:''See also: [[:Category:Pokémon that evolve by friendship]]''
Some Pokémon evolve when they are leveled up with a [[friendship]] of at least 220. Like friendship itself, this evolutionary requirement was introduced in [[Generation II]]. As long as the Pokémon has the required amount of friendship, unless there are other requirements for its evolution, it will attempt to evolve whenever it levels up by battle or Rare Candy.

[[Baby Pokémon]] often have this evolution requirement, but it is also an evolution requirement for other Pokémon, and not all baby Pokémon have this as an evolution requirement.

{| style="margin:auto; text-align:center; {{roundy}} border: 2px solid #{{flying color}}; background: #{{fairy color}};"
|-
! colspan="3" | Friendship
|-
| style="{{roundy}} background: #{{fairy color light}}" | [[File:175Togepi.png|96px]]<br>{{pcolor|Togepi|{{fairy color dark}}}}
| {{bag/s|Rare Candy|SV}} + {{bag/s|Soothe Bell|SV}}<br> →<br>Level up<br><small>while friendship is high
| style="{{roundy}} background: #{{flying color light}}" | [[File:176Togetic.png|96px]]<br>{{pcolor|Togetic|{{flying color dark}}}}
|}{{-}}

====When the Pokémon knows a certain move====
:''See also: [[:Category:Pokémon that evolve with certain moves]]''
Some Pokémon evolve when they are leveled up and know a certain move or certain type of move. This evolutionary requirement was introduced in [[Generation IV]].

If the Pokémon learns the required move by leveling up, that same level up can trigger the evolution. However, if a Pokémon learns a move by level up and overwrites the required move, such that it no longer knows the required move at the end of the battle (or after completing the level up in the case of a Rare Candy), it cannot evolve.

These moves are commonly available by leveling up, although some are only learned at level 1, so they normally must be taught by the [[Move Reminder]].

{| style="margin:auto; text-align:center; {{roundy}} border: 2px solid #{{ground color}}; background: #{{ice color}};"
|-
! colspan="3" | Knowing a move
|-
| style="{{roundy}} background: #{{ground color light}}" | [[File:221Piloswine.png|96px]]<br>{{pcolor|Piloswine|{{ground color dark}}}}
| {{bag/s|Rare Candy|SV}} + [[File:Bag TM Rock SV Sprite.png|40px|link=Ancient Power (move)]]<br>→<br>Level up<br><small>knowing {{mcolor|Ancient Power|000}}</small>
| style="{{roundy}} background: #{{ground color light}}" | [[File:473Mamoswine.png|96px]]<br>{{pcolor|Mamoswine|{{ground color dark}}}}
|}{{-}}

====In certain locations====
:''See also: [[:Category:Pokémon that evolve by training in a certain location]]''
Some Pokémon evolve when they are leveled up in certain locations. This evolutionary requirement was introduced in [[Generation IV]].

There are four different types of location that can trigger location-based evolutions: [[Moss Rock]], [[Ice Rock]], [[special magnetic field]], and [[Mount Lanakila]]. Mount Lanakila, which is only required for {{p|Crabrawler}}'s evolution, is the only one which is a specific location rather than a type of location.

{{game|HeartGold and SoulSilver|s}} lack the locations needed for location-based evolutions, making them impossible within those games. Starting in [[Generation VIII]], although some games still feature location-based evolution and others do not, it is possible to instead use [[Evolution stone]]s to evolve these Pokémon (except for {{p|Nosepass}} and {{p|Eevee}}'s evolutions into {{p|Probopass}} and {{p|Glaceon}} respectively in [[Pokémon Brilliant Diamond and Shining Pearl]]).

{| style="margin:auto; text-align:center; {{roundy}} border: 2px solid #{{steel color}}; background: #{{rock color}};"
|-
! colspan="3" | In a certain location
|-
| style="{{roundy}} background: #{{rock color light}}" | [[File:299Nosepass.png|96px]]<br>{{pcolor|Nosepass|{{rock color dark}}}}
|{{bag/s|Rare Candy|SV}} + [[File:Town Map Icon BDSP.png|40px]]<br>→<br>Level up<br><small>in a {{color2|000|special magnetic field}}</small>
| style="{{roundy}} background: #{{steel color light}}" | [[File:476Probopass.png|96px]]<br>{{pcolor|Probopass|{{steel color dark}}}}
|}{{-}}

====In a certain region====
:''See also: [[:Category:Pokémon that evolve based on region]]''
Some Pokémon evolve when they are leveled up in a specific [[region]]. This evolutionary requirement was introduced in [[Generation VII]].

Pokémon that evolve this way may also need other conditions, such as requiring it to be a specific time of day. Some Pokémon evolve into different forms depending on what region they are in.

{| style="margin:auto; text-align:center; {{roundy}} border: 2px solid #{{poison color dark}}; background: #{{poison color}};"
|-
! colspan="3" | In a certain region
|-
| style="{{roundy}} background: #{{poison color light}}" rowspan="2" | [[File:109Koffing.png|96px]]<br>{{pcolor|Koffing|{{poison color dark}}}}
| {{bag/s|Rare Candy|SV}}<br>→<br>Level 35+
| style="{{roundytop}} background: #{{poison color light}}" | [[File:110Weezing.png|96px]]<br>{{pcolor|Weezing|{{poison color dark}}}}
|-
| {{bag/s|Rare Candy|SV}} + [[File:Sword Shield Dynamax Band.png|40px|link=Galar]]<br> →<br>Level 35+<br><small>in {{color2|000|Galar}}</small>
| style="{{roundybottom}} background: #{{fairy color light}}" | [[File:110Weezing-Galar.png|96px]]<br><small>{{color2|{{poison color dark}}|Regional form#Galarian Form|Galarian}}</small><br>{{pcolor|Weezing|{{poison color dark}}}}
|}{{-}}

====At certain times====
:''See also: [[:Category:Pokémon that evolve based on time]]''
Some Pokémon evolve when they are leveled up at a certain time of day. Like the [[time]] mechanic itself, this evolutionary requirement was introduced in [[Generation II]].

The time of day is only ever one of several requirements, never the only one. Other requirements it is combined with include having high [[friendship]] or holding a specific [[held item]].

Due to the lack of a time system in {{game|FireRed and LeafGreen|s}}, {{g|Colosseum}}, or {{XD}}, Pokémon whose evolution depends on the time cannot be evolved that way in these games. In Pokémon XD, evolutions that depend on the time of day in the core series games instead depend on the [[Sun Shard]] and [[Moon Shard]].

In {{g|Sword and Shield}}, time is pre-set outside the [[Wild Area]] before becoming {{pkmn|Champion}}. This also influences evolution.

{| style="margin:auto; text-align:center; {{roundy}} border: 2px solid #{{dragon color}}; background: #{{rock color}};"
|-
! colspan="3" | At certain times
|-
| style="{{roundy}} background: #{{dragon color light}}" | [[File:696Tyrunt.png|96px]]<br>{{pcolor|Tyrunt|{{dragon color dark}}}}
|{{bag/s|Rare Candy|SV}} + [[File:Day Icon.png|40px]]<br> →<br>Level 39+<br><small>(day)</small>
| style="{{roundy}} background: #{{dragon color light}}" | [[File:697Tyrantrum.png|96px]]<br>{{pcolor|Tyrantrum|{{dragon color dark}}}}
|}{{-}}

The specific times in each game that count as day and night for evolutions are detailed in the table below.
{| class="roundy" style="margin:auto; text-align:center; background: #{{bulba color}}; border: 3px solid #{{bulba color dark}}"
|-
! colspan=2 style="background:#{{bulba color light}}; {{roundytl|5px}}" | Games
! style="background:#{{day color light}}" | Day
! style="background:#{{night color light}}; {{roundytr|5px}}" | Night
|- style="background:#FFF"
! colspan=2 | {{GameIcon|G}}{{GameIcon|S}}{{GameIcon|C}}
| 4:00 a.m. - 5:59 p.m.
| 6:00 p.m. - 3:59 a.m.
|- style="background:#FFF"
! colspan=2 | {{GameIcon|Ru}}{{GameIcon|Sa}}{{GameIcon|E}}
| 12:00 p.m. - 11:59 p.m.
| 12:00 a.m. - 11:59 a.m.
|- style="background:#FFF"
! colspan=2 | {{GameIcon|D}}{{GameIcon|P}}{{GameIcon|Pt}}<br>{{GameIcon|HG}}{{GameIcon|SS}}<br>{{GameIcon|X}}{{GameIcon|y}}<br>{{GameIcon|OR}}{{GameIcon|AS}}
| 4:00 a.m. - 7:59 p.m.
| 8:00 p.m. - 3:59 a.m.
|- style="background:#FFF"
! rowspan=4 | {{color|{{crystal color dark}}|{{GameIcon|Bl}}{{GameIcon|W}}<br>{{GameIcon|B2}}{{GameIcon|W2}}}}
! style="background:#{{spring color light}}" | Spring
| 5:00 a.m. - 7:59 p.m.
| 8:00 p.m. - 4:59 a.m.
|- style="background:#FFF"
! style="background:#{{summer color light}}" | Summer
| 4:00 a.m. - 8:59 p.m.
| 9:00 p.m. - 3:59 a.m.
|- style="background:#FFF"
! style="background:#{{autumn color light}}" | Autumn
| 6:00 a.m. - 7:59 p.m.
| 8:00 p.m. - 5:59 a.m.
|- style="background:#FFF"
! style="background:#{{winter color light}}" | Winter
| 7:00 a.m. - 6:59 p.m.
| 7:00 p.m. - 6:59 a.m.
|- style="background:#FFF"
! colspan=2 rowspan=2 | {{GameIcon|Su}}{{GameIcon|US}}<br>{{GameIcon|Mo}}{{GameIcon|UM}}{{tt|*|This time refers to the time on the 3DS's clock}}
| 6:00 a.m. - 5:59 p.m.
| 6:00 p.m. - 5:59 a.m.
|- style="background:#FFF"
| 6:00 p.m. - 5:59 a.m.
| 6:00 a.m. - 5:59 p.m.
|- style="background:#FFF"
! colspan=2 style="{{roundybl|5px}}" | {{GameIcon|Sw}}{{GameIcon|Sh}}
| 6:00 a.m. - 7:59 p.m.
| style=";{{roundybr|5px}}" | 8:00 p.m. - 5:59 a.m.
|}

====While holding an item====
:''See also: [[:Category:Pokémon that evolve by leveling up with a held item]]''
Some Pokémon evolve when they are leveled up while holding a specific [[Evolution item]]. If a Pokémon evolves this way, the item disappears upon completion of the evolution; the item is not consumed if the evolution is cancelled. This evolutionary requirement was introduced in [[Generation IV]].

All Pokémon that evolve this way also require that they be leveled up at a specific time of day to be evolved.

{| style="margin:auto; text-align:center; {{roundy}} border: 2px solid #{{ice color}}; background: #{{dark color}};"
|-
! colspan="3" | Holding an item
|-
| style="{{roundy}} background: #{{ice color light}}" | [[File:215Sneasel.png|96px]]<br>{{pcolor|Sneasel|{{ice color dark}}}}
| {{bag/s|Rare Candy|SV}} + {{bag/s|Razor Claw|SV}} + [[File:Night Icon.png|40px]]<br> →<br>Level up<br><small>holding {{color2|000|Razor Claw}}<br>(night)</small>
| style="{{roundy}} background: #{{ice color light}}" | [[File:461Weavile.png|96px]]<br>{{pcolor|Weavile|{{ice color dark}}}}
|}{{-}}

====If the Pokémon is a certain gender====
:''See also: [[:Category:Pokémon that evolve based on gender]]''
The evolution of some Pokémon that evolve when they are leveled up is dependent on the Pokémon's gender. This evolutionary requirement was introduced in [[Generation IV]].

{{p|Combee}} and {{p|Salandit}} can evolve only if they are [[Gender|female]] (males cannot evolve). {{p|Burmy}} evolves into either {{p|Mothim}} or {{p|Wormadam}}, depending on whether it is male or female, respectively.

{| style="margin:auto; text-align:center; {{roundy}} border: 2px solid #{{flying color}}; background: #{{bug color}};"
|-
! colspan="3" | Gender
|-
| style="{{roundy}} background: #{{flying color light}}" | [[File:415Combee.png|96px]]<br>{{pcolor|Combee|{{flying color dark}}}}
| {{bag/s|Rare Candy|SV}} + [[File:Female icon SV.png|link=Gender]]<br> →<br>Level 21+<br><small>if {{color2|000|Gender|female}}</small>
| style="{{roundy}} background: #{{flying color light}}" | [[File:416Vespiquen.png|96px]]<br>{{pcolor|Vespiquen|{{flying color dark}}}}
|}{{-}}

====In a certain game====
:''See also: [[:Category:Pokémon that evolve based on game]]''
The evolution of {{p|Rockruff}} and {{p|Cosmoem}} is dependent on the game they are leveled up in. This evolutionary requirement was introduced in [[Generation VII]].

Cosmoem will evolve into either {{p|Solgaleo}} or {{p|Lunala}} depending on the game it is leveled up in. {{p|Rockruff}} will always evolve into {{p|Lycanroc}}, but, prior to [[Generation VIII]], Lycanroc's form depends on the game Rockruff was evolved in, and Rockruff's evolution can only occur at certain times of day (Midday Form requires it be daytime while Midnight Form requires it be nighttime); furthermore, special Rockruff that have {{a|Own Tempo}} can only evolve into Dusk Form Lycanroc, which is not dependent on the game. Starting in [[Generation VIII]], the form Lycanroc becomes is no longer version-exclusive.

{| style="margin:auto; text-align:center; {{roundy}} border: 2px solid #{{psychic color dark}}; background: #{{psychic color}};"
|-
! colspan="3" | In a certain game
|-
| style="{{roundy}} background: #{{psychic color light}}" rowspan="2" | [[File:790Cosmoem.png|96px]]<br>{{pcolor|Cosmoem|{{psychic color dark}}}}
| {{bag/s|Rare Candy|SV}} + {{gameabbrev7|S}}{{gameabbrev7|US}}{{gameabbrev8|Sw}}<br> →<br>Level 53+<br><small>in {{color2|000|Pokémon Sun and Moon|Sun}}, {{color2|000|Pokémon Ultra Sun and Ultra Moon|Ultra Sun}}, or {{color2|000|Pokémon Sword and Shield|Sword}}
| style="{{roundytop}} background: #{{psychic color light}}" | [[File:791Solgaleo.png|96px]]<br>{{pcolor|Solgaleo|{{psychic color dark}}}}
|-
| {{bag/s|Rare Candy|SV}} + {{gameabbrev7|M}}{{gameabbrev7|UM}}{{gameabbrev8|Sh}}<br> →<br>Level 53+<br><small>in {{color2|000|Pokémon Sun and Moon|Moon}}, {{color2|000|Pokémon Ultra Sun and Ultra Moon|Ultra Moon}}, or {{color2|000|Pokémon Sword and Shield|Shield}}
| style="{{roundybottom}} background: #{{psychic color light}}" | [[File:792Lunala.png|96px]]<br>{{pcolor|Lunala|{{psychic color dark}}}}
|}{{-}}

====Using the Let's Go! feature====
:''See also: [[:Category:Pokémon that evolve using the Let's Go! feature]]''
This evolution method was introduced in [[Generation IX]]. Some Pokémon may evolve upon level up after using the [[Let's Go!]] feature to walk 1000 total steps.

{| style="margin:auto; text-align:center; {{roundy}} border: 2px solid #{{bug color dark}}; background: #{{bug color}};"
|-
! colspan="3" | Using the Let's Go! feature
|-
| style="{{roundy}} background: #{{bug color light}}" | [[File:953Rellor.png|96px]]<br>{{pcolor|Rellor|{{bug color dark}}}}
| {{bag/s|Rare Candy|SV}} + [[File:GO Jogger Shoes.png|40px]]<br>→<br>{{color2|000|Level|Level up}}<br><small>whilst outside of its {{color2|000|Poké Ball}} after walking<br>1000 steps using the {{color2|000|Let's Go!}} feature</small>
| style="{{roundy}} background: #{{psychic color light}}" | [[File:954Rabsca.png|96px]]<br>{{pcolor|Rabsca|{{psychic color dark}}}}
|}{{-}}

====Unique conditions====
:''See also: [[:Category:Pokémon that evolve through a unique method]]''
The following Pokémon evolve through a method that is isolated to their evolution line only.

* In [[Pokémon XD: Gale of Darkness]] only, {{p|Eevee}} evolves into {{p|Espeon}} or {{p|Umbreon}} when leveled up with a [[Sun Shard]] or [[Moon Shard]], respectively, in the player's [[Bag]]. Only one of the two items can be obtained per game.
* Eevee evolves into {{p|Sylveon}} when leveled up while knowing a {{type|Fairy}} move and having at least two levels of [[affection]]<sup>{{gen|VI}}—{{gen|VII}}</sup> or high friendship<sup>{{gen|VIII}}+</sup>.
* {{p|Mantyke}} evolves into {{p|Mantine}} when leveled up with a {{p|Remoraid}} in the player's party.
* {{p|Feebas}} evolves into {{p|Milotic}} when leveled up with its {{OBP|Beautiful|condition|Beauty}} [[Contest condition|condition]] at 170 or above. Starting from [[Generation V]], it also evolves into Milotic when [[trade]]d while holding a [[Prism Scale]].
* When {{p|Nincada}} evolves into {{p|Ninjask}} (which it does starting at level 20), if there is an empty slot in the party, a {{p|Shedinja}} will appear. From [[Generation IV]] onward, the player must also have a spare standard {{i|Poké Ball}} in their Bag.
* {{p|Pancham}} evolves into {{p|Pangoro}} starting at level 32 if there is a {{type|Dark}} Pokémon in the party.
* {{p|Inkay}} evolves into {{p|Malamar}} starting at level 30 when leveled up while the game system is held upside-down. On the [[Nintendo Switch]], this can only be accomplished in handheld mode.
* {{p|Sliggoo}} evolves into {{p|Goodra}} starting at level 50 during [[rain]] (or [[fog]]<sup>{{gen|VII}}-{{gen|VIII}}</sup>) in the overworld. (Rain that is only present in battle will not trigger the evolution.)
** In [[Hisui]], Sliggoo evolves into {{rf|Hisuian}} Goodra starting at level 50 during rain or fog in the overworld.
* {{p|Finizen}} evolves into {{p|Palafin}} starting at level 38 when leveled up while connected with another player via the [[Union Circle]].
* {{p|Bisharp}} evolves into {{p|Kingambit}} when leveled up after defeating three Bisharp that hold a [[Leader's Crest]].
* {{p|Gimmighoul}} evolves into {{p|Gholdengo}} when leveled up while the player has 999 [[Gimmighoul Coin]]s in their Bag. This consumes the Gimmighoul Coins, and the evolution cannot be canceled.

====Additional factors====
Some Pokémon with branched evolutions can evolve into one of multiple different Pokémon or different forms of the same Pokémon depending on other factors, but still have the same evolution requirements for all of these possibilities.

*{{p|Burmy}} evolves starting at level 20, but its evolved form is determined by its gender and, if female, its cloak. As Burmy, its cloak changes according to the place where it last battled but has no effect on Burmy itself; once it evolves into Wormadam, its cloak no longer changes, and its types and the moves it can learn are dependent on its cloak.
**Male Burmy → {{p|Mothim}}
**Female Burmy → {{p|Wormadam}}
***Female Plant Cloak Burmy → Plant Cloak Wormadam ({{t|Bug}}/{{t|Grass}})
***Female Sandy Cloak Burmy → Sandy Cloak Wormadam ({{t|Bug}}/{{t|Ground}})
***Female Trash Cloak Burmy → Trash Cloak Wormadam ({{t|Bug}}/{{t|Steel}})

*{{p|Tyrogue}} evolves starting at level 20, depending on its stats.
**{{p|Hitmonlee}} if Attack > Defense
**{{p|Hitmonchan}} if Attack < Defense
**{{p|Hitmontop}} if Attack = Defense

*{{p|Wurmple}} evolves into {{p|Silcoon}} or {{p|Cascoon}} starting at level 7, depending on its [[personality value]]. It is a hidden value determined when the Pokémon is encountered and cannot be seen or affected by the player.

*{{p|Dunsparce}} evolves into {{p|Dudunsparce}} when levelled up while knowing {{m|Hyper Drill}}. The form of Dudunsparce it evolves into depends on its [[personality value|encryption constant]]. Since this value cannot be influenced or seen by the player, what a given Dunsparce will evolve into is essentially random — with a 1/100 chance of evolving into [[List of Pokémon with form differences#Dudunsparce|Three-Segment Form]] Dudunsparce.

*{{p|Tandemaus}} evolves into {{p|Maushold}} starting at level 25, but if Tandemaus is not sent out in the battle it levels up in, the evolution animation will be skipped. The form of Maushold it evolves into depends on its [[personality value|encryption constant]]. Since this value cannot be influenced or seen by the player, what a given Tandemaus will evolve into is essentially random — with a 1/100 chance of evolving into [[List of Pokémon with form differences#Maushold|Family of Three]] Maushold.

===Using an item===
Some Pokémon evolve when they are exposed to a specific item. The player can use one of these items on a compatible Pokémon at any time outside of battle, which consumes the item. From Generation IV onwards, evolution by exposure to an item cannot be prevented by holding an [[Everstone]]. Due to being able to evolve at any time, these Pokémon usually learn fewer or no moves by level up after evolving; however, in Generation VIII, even if they do not learn any additional moves by level-up, they normally can still be taught any move their pre-evolved form could learn by level up by the [[Move Reminder]].

In [[Pokémon Legends: Arceus]] only, Pokémon that would normally evolve while holding a particular item (including by leveling up while holding a specific item) instead evolve when exposed to that item.

{| style="margin:auto; text-align:center; {{roundy}} border: 2px solid #{{dragon color dark}}; background: #{{grass color}};"
|-
! colspan="3" | Using an item
|-
| style="{{roundy}} background: #{{dragon color light}}" rowspan="2" | [[File:840Applin.png|96px]]<br>{{pcolor|Applin|{{dragon color dark}}}}
|{{bag/s|Tart Apple|SV}}<br> → <br> {{color2|000|Tart Apple}}
| style="{{roundy}} background: #{{dragon color light}}" | [[File:841Flapple.png|96px]]<br>{{pcolor|Flapple|{{dragon color dark}}}}
|-
|{{bag/s|Sweet Apple|SV}}<br> → <br> {{color2|000|Sweet Apple}}
| style="{{roundybottom}} background: #{{dragon color light}}" | [[File:842Appletun.png|96px]]<br>{{pcolor|Appletun|{{dragon color dark}}}}
|}{{-}}

====Evolution stone====
{{main|Evolution stone}}
:''See also: [[:Category:Pokémon that evolve by Evolution stone]]''
The most common type of item that can trigger this kind of evolution is an Evolution stone (and was the only type that could, prior to [[Generation VIII]]). Despite its name, the [[Oval Stone]] is not an Evolution stone, because it triggers evolution as a [[held item]] rather than by being used directly.

{| style="margin:auto; text-align:center; {{roundy}} border: 2px solid #{{fire color dark}}; background: #{{fire color}};"
|-
! colspan="3" | Using a stone
|-
| style="{{roundy}} background: #{{fire color light}}" | [[File:058Growlithe.png|96px]]<br>{{pcolor|Growlithe|{{fire color dark}}}}
|{{bag/s|Fire Stone|SV}}<br> → <br> {{color2|000|Fire Stone}}
| style="{{roundy}} background: #{{fire color light}}" | [[File:059Arcanine.png|96px]]<br>{{pcolor|Arcanine|{{fire color dark}}}}
|}{{-}}

=====If the Pokémon is a certain gender=====
:''See also: [[:Category:Pokémon that evolve based on gender]]''
While most Pokémon that evolve by Evolution stone have no additional requirements, some Pokémon that evolve this way can only evolve if they are a specific gender. This evolutionary requirement was introduced in [[Generation IV]].

The only two evolutions with this requirement are {{p|Kirlia}}'s evolution into {{p|Gallade}} (which requires that it be male) and {{p|Snorunt}}'s evolution into {{p|Froslass}} (which requires that it be female). These two evolutions are the only evolutions to use the [[Dawn Stone]].

{| style="margin:auto"
|-
|
{| style="margin:auto; text-align:center; {{roundy}} border: 2px solid #{{fighting color}}; background: #{{psychic color}};"
|-
| rowspan="2" style="{{roundy}} background: #{{fairy color light}}" | [[File:281Kirlia.png|96px]]<br>{{pcolor|Kirlia|{{fairy color dark}}}}<br><small>{{color|{{fairy color dark}}|(male)}}</small>
|-
| {{bag/s|Dawn Stone|SV}}<br> → <br> {{color2|000|Dawn Stone}}
| style="{{roundy}} background: #{{fighting color light}}" | [[File:475Gallade.png|96px]]<br>{{pcolor|Gallade|{{fighting color dark}}}}
|}
|
{| style="margin:auto; text-align:center; {{roundy}} border: 2px solid #{{ghost color}}; background: #{{ice color}};"
|-
| rowspan="2" style="{{roundy}} background: #{{ice color light}}" | [[File:361Snorunt.png|96px]]<br>{{pcolor|Snorunt|{{ice color dark}}}}<br><small>{{color|{{ice color dark}}|(female)}}</small>
|-
| {{bag/s|Dawn Stone|SV}}<br>→ <br> {{color2|000|Dawn Stone}}
| style="{{roundy}} background: #{{ghost color light}}" | [[File:478Froslass.png|96px]]<br>{{pcolor|Froslass|{{ghost color dark}}}}
|}
|}{{-}}

=====In a certain region=====
:''See also: [[:Category:Pokémon that evolve based on region]]''
While most Pokémon that evolve by Evolution stone have no additional requirements, some Pokémon can evolve into a different form when they use an Evolution stone in a specific [[region]]. This evolutionary requirement was introduced in [[Generation VII]].

{| style="margin:auto"
|-
|
{| style="margin:auto; text-align:center; {{roundy}} border: 2px solid #{{psychic color}}; background: #{{grass color}};"
|-
! colspan="3" | In Alola
|-
| style="{{roundy}} background: #{{psychic color light}}" rowspan="2" | [[File:102Exeggcute.png|96px]]<br>{{pcolor|Exeggcute|{{psychic color dark}}}}
| {{bag/s|Leaf Stone|SV}}<br>→<br>Leaf Stone
| style="{{roundytop}} background: #{{psychic color light}}" | [[File:103Exeggutor.png|96px]]<br>{{pcolor|Exeggutor|{{psychic color dark}}}}
|-
| {{bag/s|Leaf Stone|SV}} + [[File:Z-Ring SM.png|40px|link=Alola]]<br> →<br>Leaf Stone<br><small>in {{color2|000|Alola}}</small>
| style="{{roundybottom}} background: #{{dragon color light}}" | [[File:103Exeggutor-Alola.png|96px]]<br><small>{{color2|{{dragon color dark}}|Regional form#Alolan Form|Alolan}}</small><br>{{pcolor|Exeggutor|{{dragon color dark}}}}
|}{{-}}

====Special items====
The following items are each only used by one Pokémon to evolve.

*{{rf|Galarian}} {{p|Slowpoke}} evolves into {{rf|Galarian}} {{p|Slowbro}} when exposed to [[Galarica Cuff]]
*{{rf|Galarian}} {{p|Slowpoke}} evolves into {{rf|Galarian}} {{p|Slowking}} when exposed to [[Galarica Wreath]]
*{{p|Applin}} evolves into {{p|Flapple}} when exposed to [[Tart Apple]]
*{{p|Applin}} evolves into {{p|Appletun}} when exposed to [[Sweet Apple]]
*Phony Form {{p|Sinistea}} evolves into Phony Form {{p|Polteageist}} when exposed to [[Cracked Pot]]
*Antique Form {{p|Sinistea}} evolves into Antique Form {{p|Polteageist}} when exposed to [[Chipped Pot]]
*In [[Generation IX]], {{p|Kubfu}} evolves into Single Strike Style {{p|Urshifu}} when exposed to [[Scroll of Darkness]]
*In [[Generation IX]], {{p|Kubfu}} evolves into Rapid Strike Style {{p|Urshifu}} when exposed to [[Scroll of Waters]]
*{{p|Scyther}} evolves into {{p|Kleavor}} when exposed to [[Black Augurite]]
*{{p|Ursaring}} evolves into {{p|Ursaluna}} when exposed to [[Peat Block]] during a full moon
*{{p|Charcadet}} evolves into {{p|Armarouge}} when exposed to [[Auspicious Armor]]
*{{p|Charcadet}} evolves into {{p|Ceruledge}} when exposed to [[Malicious Armor]]

===Trading===
:''See also: [[:Category:Pokémon that evolve through trading]]''
Some Pokémon evolve when they are [[trade]]d. The evolution starts immediately after the trade is completed, regardless of the method of trading used. However, sometimes there are additional conditions.

In the anime, Pokémon that evolve by trade sometimes evolve after being temporarily in a different person's possession, like [[Misty's Politoed]] being with [[Nurse Joy]] at the [[Pokémon Center]] and [[Brock's Steelix]] when he lent Onix to his brother [[Forrest]].

{| style="margin:auto; text-align:center; {{roundy}} border: 2px solid #{{poison color}}; background: #{{ghost color}};"
|-
! colspan="3" | Trade
|-
| style="{{roundy}} background: #{{poison color light}}" | [[File:093Haunter.png|96px]]<br>{{pcolor|Haunter|{{poison color dark}}}}
| [[File:Link Trade icon SV.png|40px|link=Trade]]<br>→ <br> Trade
| style="{{roundy}} background: #{{poison color light}}" | [[File:094Gengar.png|96px]]<br>{{pcolor|Gengar|{{poison color dark}}}}
|}{{-}}

====Trade holding a certain item====
:''See also: [[:Category:Pokémon that evolve by trading with a held item]]''
Some Pokémon evolve when traded while holding a specific [[Evolution item]]. If a Pokémon evolves this way, the item disappears upon completion of the evolution. This method of evolution was introduced in [[Generation II]] (the same generation that introduced held items in general).

In [[Pokémon Legends: Arceus]], Pokémon that evolve when traded while holding a specific item can be evolved without trading by using their evolution item from the player's satchel.

{| style="margin:auto; text-align:center; {{roundy}} border: 2px solid #{{electric color dark}}; background: #{{electric color}};"
|-
! colspan="3" | Trade while holding an item
|-
| style="{{roundy}} background: #{{electric color light}}" | [[File:125Electabuzz.png|96px]]<br>{{pcolor|Electabuzz|{{electric color dark}}}}
| [[File:Link Trade icon SV.png|40px|link=Trade]] + [[File:Dream Electirizer Sprite.png|36px|link=Electirizer]]<br> → <br> Trade<br><small>Holding an {{color2|000|Electirizer}}</small>
| style="{{roundy}} background: #{{electric color light}}" | [[File:466Electivire.png|96px]]<br>{{pcolor|Electivire|{{electric color dark}}}}
|}{{-}}

====Trading for a certain Pokémon====
Some Pokémon evolve when traded with a specific Pokémon. Only two Pokémon do this so far and evolve each other through this method. This method of evolution was introduced in [[Generation V]]. If either Pokémon holds an [[Everstone]], neither can evolve.

{| style="margin:auto; text-align:center; {{roundy|10px}} border: 2px solid #{{bug color dark}}; background: #{{bug color}};"
|-
! colspan="3" | Trade for certain Pokémon
|-
| style="{{roundy|10px}} background:#{{bug color light}}" | [[File:616Shelmet.png|96px]]<br>{{pcolor|Shelmet|{{bug color dark}}}}
| [[File:Link Trade icon SV.png|40px|link=Trade]] <small>for</small>{{ArtP|588|Karrablast|size=40px}}<br>→ <br/> Trade<br/><small>For a {{color2|000|Karrablast (Pokémon)|Karrablast}}</small>
| style="{{roundy|10px}} background: #{{bug color light}}" | [[File:617Accelgor.png|96px]]<br>{{pcolor|Accelgor|{{bug color dark}}}}
|-
| style="{{roundy|10px}} background:#{{bug color light}}" | [[File:588Karrablast.png|96px]]<br>{{pcolor|Karrablast|{{bug color dark}}}}
| [[File:Link Trade icon SV.png|40px|link=Trade]] <small>for</small>{{ArtP|616|Shelmet|size=40px}}<br>→ <br/> Trade<br/><small>For a {{color2|000|Shelmet (Pokémon)|Shelmet}}</small>
| style="{{roundy|10px}} background: #{{steel color light}}" | [[File:589Escavalier.png|96px]]<br>{{pcolor|Escavalier|{{steel color dark}}}}
|}

===Unique triggers===
[[Generation VIII]] introduced several unique triggers for newly introduced Pokémon and [[regional form]]s. These triggers are all exclusive to a single Pokémon.

* {{rf|Galarian}} {{p|Farfetch'd}} evolves into {{p|Sirfetch'd}} after it lands three [[critical hit]]s in a single battle.
* {{rf|Galarian}} {{p|Yamask}} evolves into {{p|Runerigus}} when the player travels through the stone gate in the [[Dusty Bowl]] after it has lost 49 {{stat|HP}} or more from a single attack and did not [[fainting|faint]] in the same battle or since.
* {{p|Milcery}} evolves into {{p|Alcremie}} when the player spins and strikes a pose while Milcery holds a [[Sweet]]. Unless Milcery is {{Shiny}}, Alcremie's color depends on the [[time]] of day, the length of the spin, and the direction of the spin; if Milcery is {{Shiny}}, Alcremie takes on its sole Shiny coloration. Alcremie's Sweet corresponds to the Sweet Milcery held.
** Vanilla Cream: Spin clockwise quickly in the day
** Ruby Cream: Spin anti-clockwise quickly in the day
** Matcha Cream: Spin clockwise quickly at night
** Salted Cream: Spin anti-clockwise quickly at night
** Lemon Cream: Spin clockwise for over 5 seconds at night
** Ruby Swirl: Spin anti-clockwise for over 5 seconds in the day
** Caramel Swirl: Spin clockwise for over 5 seconds in the day
** Mint Cream: Spin anti-clockwise for over 5 seconds at night
** Rainbow Swirl: Spin anti-clockwise for over 10 seconds at dusk
* {{p|Kubfu}} evolves into {{p|Urshifu}} when shown the scroll in one of the [[Towers of Two Fists]]. The {{DL|List of Pokémon with form differences|Urshifu|form}} it evolves into depends on the tower it is trained in.
** Kubfu evolves into Urshifu Single Strike Style when trained in the [[Tower of Darkness]].
** Kubfu evolves into Urshifu Rapid Strike Style when trained in the [[Tower of Waters]].
* {{p|Stantler}} evolves into {{p|Wyrdeer}} after using {{m|Psyshield Bash}} in the [[Move mastery|agile style]] at least 20 times.
* {{DL|List of Pokémon with form differences|Basculin|White-Striped}} {{p|Basculin}} evolves into {{p|Basculegion}} after losing at least 294 {{Stat#HP|HP}} from [[Recoil|recoil damage]], not counting damage that results in it fainting.
* {{rf|Hisuian}} {{p|Qwilfish}} evolves into {{p|Overqwil}} after using {{m|Barb Barrage}} in the [[Move mastery|strong style]] at least 20 times.
* {{p|Primeape}} evolves into {{p|Annihilape}} when leveled up after using {{m|Rage Fist}} at least 20 times.

===Can only evolve in other games===
{{p|Meltan}}, which first appeared in the core series games in [[Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!]], cannot be evolved in the core series games. Instead, it can only be evolved in [[Pokémon GO]], where it can be evolved by pressing the "Evolve" button on Meltan's profile screen and spending 400 Meltan {{OBP|Candy|GO}}.

{| style="margin:auto; text-align:center; {{roundy}} border: 2px solid #{{steel  color dark}}; background: #{{steel color}};"
|-
! colspan="3" | Candy in Pokémon GO
|-
| style="{{roundy}} background: #{{steel color light}}" | [[File:808Meltan.png|96px]]<br>{{pcolor|Meltan|{{steel color dark}}}}
| {{Candy|Meltan|size=40px}} + [[File:Pokémon GO icon.png|40px|link=Pokémon GO]]<br>400 {{color2|000|Candy (GO)|Meltan Candy}}<br><small>in {{color2|000|Pokémon GO}}</small>
| style="{{roundy}} background: #{{steel color light}}" | [[File:809Melmetal.png|96px]]<br>{{pcolor|Melmetal|{{steel color dark}}}}
|}{{-}}

==In spin-off games==
{{incomplete|section|needs=Mystery Dungeon}}
===Pokémon GO===
{{main|List of Pokémon by evolution family (GO)}}
In [[Pokémon GO]], the only way to evolve Pokémon is to press the "Evolve" button on that Pokémon's profile page. All Pokémon require the player spend a specific amount of their own {{OBP|Candy|GO}} to evolve them, but some have additional requirements.

Some evolutions require an item in addition to the Candy cost. All evolutions that require an [[Evolution item]] other than an [[Evolution stone]] (except {{p|Feebas}} and {{p|Clamperl}}) or [[Sun Stone]] to evolve in the core series require an item to be spent in Pokémon GO. For evolutions introduced in Generation II, the item required is the same as in the core series. All [[cross-generational evolutions]] introduced in [[Generation IV]], except location-based evolutions, require a [[Sinnoh Stone]] to evolve. All evolutions introduced in Generation V that require an Evolution stone in the core series (except a Sun Stone) require a [[Unova Stone]] in Pokémon GO; Generation V evolutions that require a Sun Stone in the core series also require it in Pokémon GO.

From January 10, 2020 onward, certain Pokémon do not cost any Candy to evolve if they are traded. These Pokémon are {{p|Kadabra}}, {{p|Machoke}}, {{p|Graveler}}, {{p|Haunter}}, {{p|Boldore}}, {{p|Gurdurr}}, {{p|Karrablast}}, {{p|Shelmet}}, {{p|Pumpkaboo}}, and {{p|Phantump}}.

{{p|Feebas}}, {{p|Bonsly}}, {{p|Mime Jr.}}, {{p|Happiny}} and {{p|Woobat}} cannot be evolved until the player has walked with them as [[Buddy Pokémon]] for a sufficient distance (the specific distance varies between species). This requirement is noted under the "Evolve" button.

For some species of Pokémon with branched evolutions, there are multiple "Evolve" buttons, allowing the player to choose which Pokémon to evolve into. The different buttons may have different requirements, such as one button requiring an item while another does not.

Despite having branched evolutions, {{p|Eevee}}, {{p|Tyrogue}}, {{p|Wurmple}}, and {{p|Clamperl}} only have a single button. Some of them have no indication of which Pokémon it will evolve into in most cases.
*Normally, if the player evolves Eevee, it will randomly evolve into one of {{p|Vaporeon}}, {{p|Jolteon}}, and {{p|Flareon}}. However, if the player meets a special requirement, the player can influence its evolution.
**If the player is in range of a [[Mossy Lure Module]] or [[Glacial Lure Module]], Eevee will evolve into Glaceon or Leafeon, respectively. In this case, the Evolution button will indicate which Pokémon Eevee will evolve into.
**Once per nickname, if an Eevee has one of several special [[nickname]]s when evolved, it will evolve into a specific Pokémon. If the Eevee is nicknamed "{{DL|Eevee brothers|Rainer}}", "{{DL|Eevee brothers|Sparky}}", "{{DL|Eevee Brothers|Pyro}}", "[[Sakura]]", "{{DL|Kimono Girl|In the anime|Tamao}}", "{{DL|Eevee users|Leafeon User Linnea|Linnea}}", "{{DL|Eevee users|Glaceon User Rea|Rea}}", or "{{DL|Eevee users|Sylveon User Kira|Kira}}" it will evolve into Vaporeon, Jolteon, Flareon, Espeon, Umbreon, Leafeon, Glaceon, or Sylveon, respectively. Once the player has evolved an Eevee using one of these nicknames, that nickname will no longer have any impact on Eevee's evolution.
**If Eevee is currently the [[Buddy Pokémon]] and has obtained at least 2 Candy for the player, it will evolve into {{p|Espeon}} during Day Mode or {{p|Umbreon}} during Night Mode.
*The Pokémon {{p|Tyrogue}} evolves into depends on its highest {{IV}}. It will evolve into {{p|Hitmonlee}} if it is Attack, {{p|Hitmonchan}} if it is Defense, or {{p|Hitmontop}} if it is HP. Unless there is a tie, the Evolution button will indicate which Pokémon it will evolve into. If there is a tie, the tie is broken randomly.
*{{p|Wurmple}} evolves into either {{p|Silcoon}} or {{p|Cascoon}} at random.
*{{p|Clamperl}} evolves into either {{p|Huntail}} or {{p|Gorebyss}} at random.

===Pokémon Pinball series===
{{main|Evolution Item (Pinball)}}
In [[Pokémon Pinball]] and [[Pokémon Pinball: Ruby & Sapphire]], once the Evolution Mode or Evo Mode starts and the player chooses a Pokémon to evolve, then three instances of the same [[Evolution Item (Pinball)|Evolution Item]] appear somewhere on the table, one at a time. The player is required to get the three repeated Evolution Items before the time runs up in order to evolve the chosen Pokémon. For instance, if the player attempts to evolve a {{p|Vulpix}} into {{p|Ninetales}}, they will be required to find three [[Fire Stone]]s on the table. Most available Pokémon evolve by [[experience]], which requires getting three "Ex" Evolution Items. If the Pokémon evolves by [[trade]] in the core series, then the player needs to get three [[Game Link Cable|Link Cable]] Evolution Items.

==In the TCG==
{{main|Evolution#In the TCG}}

In the {{pkmn|Trading Card Game}}, there are no different methods needed to evolve a Pokémon, but instead, all Pokémon evolve simply by placing the next stage on top of a Pokémon in play that it evolves into. For instance, if the player has a {{p|Vulpix}} card in play, they may evolve it by placing a {{p|Ninetales}} card on top of it. Some cards reference methods of evolution found in the core series, such as the {{OBP|Moon Stone|Vending S1}} and the {{OBP|Dusk Stone|Unbroken Bonds 167}}.

The evolution procedure from the real-life card game is used in {{ga|Pokémon Trading Card Game}}, [[Pokémon Card GB2: Here Comes Team GR!]], [[Pokémon Play It!]], and [[Pokémon Play It! Version 2]].

==Trivia==
* {{game|FireRed and LeafGreen|s}} and {{game|HeartGold and SoulSilver|s}} are the only [[core series]] titles to have methods of evolution required by some included Pokémon [[Pokémon (species)|species]] completely unavailable.
** Pokémon whose method of evolution [[Methods_of_evolution#At_certain_times|depends on the time]], {{p|Espeon}} and {{p|Umbreon}}, cannot be evolved into in FireRed and LeafGreen.
** Pokémon whose method of evolution [[Methods_of_evolution#In_certain_locations|depends on a specific location]], {{p|Magnezone}}, {{p|Leafeon}}, {{p|Glaceon}}, and {{p|Probopass}}, cannot be evolved into in HeartGold and SoulSilver.

[[Category:Pokémon world]]

[[it:Metodi evolutivi]]
[[zh:进化方式]]