Evolution (進化(しんか)) is the first evolution in the Pokémon franchise when one Pokémon, upon reaching a certain level, using certain stones, learning certain moves, or being traded, evolves into a different kind of Pokémon. In Pokémon Gold, Silver, Crystal, HeartGold and SoulSilver games, it is stated that Professor Elm is an expert on evolution, and discovered that Pikachu evolves from Pichu.

In the anime, during evolution, a Pokémon will become surrounded by a light and slowly change shape. From The Beginning through to Diamond and Pearl, the Pokémon is surrounded by a white light, while in Black & White to Pokémon Journeys, the Pokémon is surrounded by a golden or blue light. An evolution can also occur through multiple Pokémon of the same species combining.

To some Pokémon, evolution means growing up, while to others, it just refers becoming another species or getting upgraded. However, many of them retain the memories of their life during their pre-evolution form.

Normal Evolution tricks

Pokémon gain experience after battling wild Pokémon and Pokémon Trainers. The more experience a Pokémon gains, the more it levels up. When a Pokémon reaches a particular level, it will evolve into its next form (if it has one). This is very helpful to most Trainers who want their Pokémon to become stronger.

There are ways to share experience, such as allow a Pokémon you wish it to evolve to hold Exp. Share. It is a hold item that allows the user to earn experience even if it did not participate in the battle. This is a convenient tool if you want to level up a new or low-level Pokémon.

Evolution can be prevented by simply press the 'B' button on the Game when the Pokémon is attempting to evolve. This is useful as some Pokémon will learn moves that cannot be learnt in a later form or if you want a Pokémon to learn a move earlier than usual. For example, Gabite. If you let Gible evolve into Gabite at level 24 it will learn Dragon Rush at level 49, but if you keep Gible it will learn Dragon Rush at level 37. Sometimes it doesn't matter if you let it evolve or not. The Pokémon can hold an Everstone, which keeps them from evolving, so that you don't have to keep cancelling the evolution every time the Pokémon levels up. However, if your Pokémon has evolved, it might not evolve again (Raticate, Linoone, etc.) Although some Pokémon can evolve more than once (Poliwhirl, Cascoon, etc.), some basic Pokémon just can't evolve, due to undiscovered forms, or if they are really rare (Chatot, Groudon, etc.) There are also Pokémon that can evolve into different things like love, choice, etc. For example, Eevee, Poliwhirl, Wurmple, or Kirlia.

Special Condition Evolutions

Bag Item Evolutions

Some Pokémon will not evolve unless you use special items, mostly consisting of Evolutionary Stones, which are linked to the Pokémon's type. Here are a list of Pokémon that can evolve by giving them the items.

List of Pokémon that Evolve by Using Items
Name Conditions Evolve to
Vulpix 037.png Fire Stone Bag Fire Stone Sprite.png Ninetales 038.png
Growlithe 058.png Arcanine 059.png
Eevee 133.png Flareon 136.png
Pansear 513.png Simisear 514.png
Pikachu 025.png Thunder Stone Bag Thunderstone Sprite.png Raichu 026.png
Raichu (Alolan) 026A.png
Eevee 133.png Jolteon 135.png
Eelektrik 603.png Eelektross 604.png
Charjabug 737.png Vikavolt 738.png
Poliwhirl 061.png Water Stone Bag Water Stone Sprite.png Poliwrath 062.png
Shellder 090.png Cloyster 091.png
Staryu 120.png Starmie 121.png
Eevee 133.png Vaporeon 134.png
Lombre 271.png Ludicolo 272.png
Panpour 515.png Simipour 516.png
Gloom 044.png Leaf Stone Bag Leaf Stone Sprite.png Vileplume 045.png
Weepinbell 070.png Victreebel 071.png
Exeggcute 102.png Exeggutor 103.png
Exeggutor (Alolan) 103A.png
Eevee 133.png Leafeon 470.png
Nuzleaf 274.png Shiftry 275.png
Pansage 511.png Simisage 512.png
Gloom 044.png Sun Stone Bag Sun Stone Sprite.png Bellossom 182.png
Sunkern 191.png Sunflora 192.png
Cottonee 546.png Whimsicott 547.png
Petilil 548.png Lilligant 549.png
Helioptile 694.png Heliolisk 695.png
Nidorina 030.png Moon Stone Bag Moon Stone Sprite.png Nidoqueen 031.png
Nidorino 033.png Nidoking 034.png
Clefairy 035.png Clefable 036.png
Jigglypuff 039.png Wigglytuff 040.png
Skitty 300.png Delcatty 301.png
Munna 517.png Musharna 518.png
Roselia 315.png Shiny Stone Bag Shiny Stone Sprite.png Roserade 407.png
Togetic 176.png Togekiss 468.png
Minccino 572.png Cinccino 573.png
Floette 670.png Florges 671.png
Kirlia (♂ - Male) 281.png Dawn Stone Bag Dawn Stone Sprite.png Gallade 475.png
Snorunt (♀ - Female) 361.png Froslass 478.png
Murkrow 198.png Dusk Stone Bag Dusk Stone Sprite.png Honchkrow 430.png
Misdreavus 200.png Mismagius 429.png
Lampent 608.png Chandelure 609.png
Doublade 680.png Aegislash 681.png
Sandshrew (Alolan) 027A.png Ice Stone Bag Ice Stone Sprite.png Sandslash (Alolan) 028A.png
Vulpix (Alolan) 037A.png Ninetales (Alolan) 038A.png
Eevee 133.png Glaceon 471.png
Darumaka (Galarian) 554A.png Darmanitan (Galarian) 555B.png
Applin 840.png Tart Apple Tart Apple Sprite.png Flapple 841.png
Sweet Apple Sweet Apple Sprite.png Appletun 842.png
Sinistea 854.png
(Phony)
Cracked Pot Cracked Pot Sprite.png Polteageist 855.png
(Phony)
Sinistea 854.png
(Antique)
Chipped Pot Chipped Pot Sprite.png Polteageist 855.png
(Antique)
Slowpoke 079A.png
(Galarian)
Galarica Cuff Galarica Cuff Sprite.png Slowbro 080A.png
(Galarian)
Galarica Wreath Galarica Wreath Sprite.png Slowking 199A.png
(Galarian)

Held Item Evolutions

Some items are needed for a Pokémon to evolve. If a Pokémon hold the item allowing it to evolve, let it level up once and it will then evolve into the second form.

List of Pokémon that Evolve by Holding Items
Name Conditions Evolve to
Gligar 207.png Held Item: Razor Fang at Night Gliscor 472.png
Sneasel 215.png Held Item: Razor Claw at Night Weavile 461.png
Happiny 440.png Held Item: Oval Stone at Day Chansey 113.png

Trading + Held Item Evolutions

A small group of Pokémon refuses to evolve, no matter if you are at the appropriate level to trigger the evolve process, unless you trade them with a friend. Some Pokémon need to have a held item to evolve when trading with a friend. Another group require specific Pokémon to be trade in order to evolve.

List of Pokémon that Evolve by Trading
Name Conditions Evolve to
Kadabra 064.png None Alakazam 065.png
Haunter 093.png Gengar 094.png
Machoke 067.png Machamp 068.png
Graveler 075.png Golem 076.png
Graveler (Alolan) 075A.png Golem (Alolan) 076A.png
Boldore 525.png Gigalith 526.png
Gurdurr 533.png Conkeldurr 534.png
Phantump 708.png Trevenant 709.png
Pumpkaboo 710.png Gourgeist 711.png
Onix 095.png Held Item: Metal Coat Steelix 208.png
Scyther 123.png Scizor 212.png
Poliwhirl 061.png Held Item: King's Rock Politoed 186.png
Slowpoke 079.png Slowking 199.png
Seadra 117.png Held Item: Dragon Scale Kingdra 230.png
Porygon 137.png Held Item: Upgrade Porygon2 233.png
Clamperl 366.png Held Item: Deep Sea Scale Gorebyss 368.png
Held Item: Deep Sea Tooth Huntail 367.png
Electabuzz 125.png Held Item: Electirizer Electivire 466.png
Magmar 126.png Held Item: Magmarizer Magmortar 467.png
Rhydon 112.png Held Item: Protector Rhyperior 464.png
Porygon2 233.png Held Item: Dubious Disc Porygon-Z 474.png
Feebas 349.png Held Item: Prism Scale (Generation V-) Milotic 350.png
Dusclops 356.png Held Item: Reaper Cloth Dusknoir 477.png
Shelmet 616.png Trade for Karrablast Accelgor 617.png
Karrablast 588.png Trade for Shelmet Escavalier 589.png
Spritzee 682.png Held Item: Sachet Aromatisse 683.png
Swirlix 684.png Held Item: Whipped Dream Slurpuff 685.png

Gender Evolution

Small groups of Pokémon requires a gender to evolve into the next stage.

List of Pokémon that Evolve by Gender
Name Conditions Evolve to
Kirlia 281.png Dawn Stone Bag Dawn Stone Sprite.png (♂ - Male) Gallade 475.png
Burmy 412.png 412B.png 412C.png Level 20, (♀ - Female) Wormadam 413.png 413B.png 413C.png
Level 20, (♂ - Male) Mothim 414.png
Combee 415.png Level 25, (♀ - Female) Vespiquen 416.png
Snorunt 361.png Dawn Stone Bag Dawn Stone Sprite.png, (♀ - Female) Froslass 478.png
Salandit 757.png Level 33, (♀ - Female) Salazzle 758.png

Friendship Evolutions

Certain Pokémon, especially baby Pokémon, requires friendship with its trainer and if they are fond enough, they are willing to evolve. Some Pokémon only evolves in a certain time of the day with friendship.

List of Pokémon that Evolve by Friendship
Name Conditions Evolve to
Golbat 042.png None Crobat 169.png
Chansey 113.png Blissey 242.png
Pichu 172.png Pikachu 025.png
Cleffa 173.png Clefairy 035.png
Igglybuff 174.png Jigglypuff 039.png
Togepi 175.png Togetic 176.png
Azurill 298.png Marill 183.png
Buneary 427.png Lopunny 428.png
Munchlax 446.png Snorlax 143.png
Woobat 527.png Swoobat 528.png
Swadloon 541.png Leavanny 542.png
Type: Null 772.png Silvally 773.png
Eevee 133.png at Day Espeon 196.png
Budew 406.png Roselia 315.png
Riolu 447.png Lucario 448.png
Meowth (Alolan) 052A.png at Night Persian (Alolan) 053A.png
Eevee 133.png Umbreon 197.png
Chingling 433.png Chimecho 358.png
Snom 872.png Frosmoth 873.png

Location-Based Evolutions

Special Pokémon evolve by leveling up at a certain area of location.

List of Pokémon that Evolve by Locations
Name Locations Evolve to
Magneton 082.png Locations with an Special Magnetic Field
(Gen. IV-VII)
Magnezone 462.png
Nosepass 299.png Probopass 476.png
Charjabug 737.png Vikavolt 738.png
Eevee 133.png Locations with an Moss Rock
(Gen. IV-VII)
Leafeon 470.png
Locations with an Ice Rock
(Gen. IV-VII)
Glaceon 471.png
Crabrawler 739.png Mount Lanakila Crabominable 740.png

Attack-Based Evolutions

Certain Pokémon need to know a move to evolve. This method was introduced in Generation IV, starting with Diamond/Pearl/Platinum.

List of Pokémon that Evolve by Learning Moves
Name Conditions Evolve to
Tangela 114.png learning Ancient Power Tangrowth 465.png
Yanma 193.png Yanmega 469.png
Piloswine 221.png Mamoswine 473.png
Bonsly 438.png learning Mimic Sudowoodo 185.png
Mime Jr. 439.png Mr. Mime 122.png
Lickitung 108.png learning Rollout Lickilicky 463.png
Aipom 190.png learning Double Hit Ambipom 424.png
Steenee 762.png learning Stomp Tsareena 763.png
Poipole 803.png learning Dragon Pulse Naganadel 804.png
Clobbopus 852.png learning Taunt Grapploct 853.png

Time-Based Evolutions

The current time of day will sometimes affect evolution. This method was introduced in Generation VI, starting with X/Y/OR/AS.

List of Pokémon that Evolve by Time
Name Conditions Evolve to
Tyrunt 696.png Level 39+ during the day. Tyrantrum 697.png
Amaura 698.png Level 39+ during the night. Aurorus 699.png
Rattata (Alolan) 019A.png Level 20+ during the night. Raticate (Alolan) 020A.png
Cubone 104.png Level 28+ during the night. Marowak (Alolan) 105A.png
Yungoos 734.png Level 20+ during the day. Gumshoos 735.png
Rockruff 744.png Level 25+ during the day. Lycanroc (Midday) 745.png
Level 25+ during the night. Lycanroc (Midnight) 745Mn.png
Level 25+ during the dusk with Own Tempo Ability. Lycanroc (Dusk) 745Du.png
Fomantis 753.png Level 25+ during the day. Lurantis 754.png
Linoone (Galarian) 264A.png Level 35+ at night. Obstagoon 862.png

Unique Evolutions

Some Pokémon have unique ways of evolving.

List of Pokémon that Evolve by Unique Way
Name Conditions Evolve to
Farfetch'd (Galarian) 083A.png Get 3 Critical Hits in 1 Battle Sirfetch'd 865.png
Eevee 133.png 2+ Affection in Pokémon-Amie or Pokémon Refresh/Has high friendship, learn a Type Fairy.gif-type move. Sylveon 700.png
Wurmple 265.png Level 7 (Random depending on PV - Personality Value) Silcoon 266.png
Cascoon 268.png
Tyrogue 236.png Level 20, Attack stats more than Defense Hitmonlee 106.png
Level 20, Defense stats more than Attack Hitmonchan 107.png
Level 20, Attack stats equal to Defense Hitmontop 237.png
Feebas 349.png Maxed out Beauty Condition and then level up (Generation III - IV) Milotic 350.png
Nincada 290.png Level 20, with empty Poké Ball and an open slot on your party. Shedinja 292.png
Mantyke 458.png Level up with a Remoraid in the party. Mantine 226.png
Yamask (Galar) 562A.png Walk under the stone bridge in Dusty Bowl after Yamask has taken at least 49 HP in damage without fainting. Runerigus 867.png
Pancham 674.png Level 32+ with a Type Dark.gif-type in your party. Pangoro 675.png
Inkay 686.png Level 30+ while holding the Nintendo 3DS upside down/the Nintendo Switch upside down in handheld mode when disconnecting the Pro Controller by removing the Switch from the docking station. Malamar 687.png
Sliggoo 705.png Level 50+ during rainy or foggy weather. Goodra 706.png
Cosmoem 790.png Level 53+ in Pokémon Sun, Ultra Sun, or Sword. Solgaleo 791.png
Level 53+ in Pokémon Moon, Ultra Moon, or Shield. Lunala 792.png
Meltan 808.png Evolve in Pokémon GO once the player has 400 Meltan Candies. Melmetal 809.png
Toxel 848.png Level 30+ with Bashful, Bold, Calm, Careful, Gentle, Lonely, Mild, Modest, Quiet, Relaxed, Serious, or Timid Nature. Toxtricity (Low Key) 849A.png
Level 30+ with Adamant, Brave, Docile, Hardy, Hasty, Impish, Jolly, Lax, Naive, Naughty, Rash, Quirky, or Sassy Nature. Toxtricity (Amped) 849.png
Milcery 868.png Spin clockwise for 5 seconds during the day, holding a Sweet Alcremie (Vanilla Cream) 869.png
Spin counter-clockwise for 5 seconds during the day, holding a Sweet Alcremie (Ruby Cream) 869RC.png
Spin clockwise for 5 seconds during the night, holding a Sweet Alcremie (Matcha Cream) 869MaC.png
Spin counter-clockwise for 5 seconds during the night, holding a Sweet Alcremie (Salted Cream) 869SC.png
Spin clockwise for more than 5 seconds during the day, holding a Sweet Alcremie (Caramel Swirl) 869CS.png
Spin counter-clockwise for more than 5 seconds during the day, holding a Sweet Alcremie (Ruby Swirl) 869RS.png
Spin clockwise for more than 5 seconds during the night, holding a Sweet Alcremie (Lemon Cream) 869LC.png
Spin counter-clockwise for more than 5 seconds during the night, holding a Sweet Alcremie (Mint Cream) 869MiC.png
Spin counter-clockwise for more than 10 seconds during the dusk/dawn, holding a Sweet Alcremie (Rainbow Swirl) 869RaS.png
Kubfu 891.png Complete the Tower of Darkness Urshifu (Single Strike Style) 892.png
Complete the Tower of Waters Urshifu (Rapid Strike Style) 892.png

Mega Evolutions

Certain Pokémon will be able to Mega Evolve with the use of a Mega Stone, a held item, if its Trainer has a Key Stone. However, the Pokémon will revert into their non-Mega Evoloved form at the end of the battle, or after the Pokémon faints.

List of Pokémon that can Mega Evolve
Name Conditions Evolve to
003.png Venusaur Hold Venusaurite 003M.png Mega Venusaur
006.png Charizard Hold Charizardite X 006M.png Mega Charizard X
Hols Charizardite Y 006M2.png Mega Charizard Y
009.png Blastoise Hold Blastoisite 009M.png Mega Blastoise
015.png Beedrill Hold Beedrilite 015M.png Mega Beedrill
018.png Pidgeot Hold Pidgeotite 018M.png Mega Pidgeot
065.png Alakazam Hold Alakazamite 065M.png Mega Alakazam
080.png Slowbro Hold Slowbronite 080M.png Mega Slowbro
094.png Gengar Hold Gengarite 094M.png Mega Gengar
115.png Kangaskhan Hold Kangaskhanite 115M.png Mega Kangaskhan
127.png Pinsir Hold Pinsirite 127M.png Mega Pinsir
130.png Gyarados Hold Gyaradosite 130M.png Mega Gyarados
142.png Aerodactyl Hold Aerodactylite 142M.png Mega Aerodactyl
150.png Mewtwo Hold Mewtwonite X 150M.png Mega Mewtwo X
Hold Mewtwonite Y 150M2.png Mega Mewtwo Y
181.png Ampharos Hold Ampharosite 181M.png Mega Ampharos
208.png Steelix Hold Steelixite 208M.png Mega Steelix
212.png Scizor Hold Scizorite 212M.png Mega Scizor
214.png Heracross Hold Heracronite 214M.png Mega Heracross
229.png Houndoom Hold Houndoomite 229M.png Mega Houndoom
248.png Tyranitar Hold Tyranitarite 248M.png Mega Tyranitar
254.png Sceptile Hold Sceptilite 254M.png Mega Sceptile
257.png Blaziken Hold Blazikenite 257M.png Mega Blaziken
260.png Swampert Hold Swampertite 260M.png Mega Swampert
282.png Gardevoir Hold Gardevoirite 282M.png Mega Gardevoir
302.png Sableye Hold Sablenite 302M.png Mega Sableye
303.png Mawile Hold Mawilite 303M.png Mega Mawile
306.png Aggron Hold Aggronite 306M.png Mega Aggron
308.png Medicham Hold Medichamite 308M.png Mega Medicham
310.png Manectric Hold Manectite 310M.png Mega Manectric
319.png Sharpedo Hold Sharpedonite 319M.png Mega Sharpedo
323.png Camerupt Hold Cameruptite 323M.png Mega Camerupt
334.png Altaria Hold Altarianite 334M.png Mega Altaria
354.png Banette Hold Banettite 354M.png Mega Banette
359.png Absol Hold Absolite 359M.png Mega Absol
362.png Glalie Hold Glalitite 362M.png Mega Glalie
373.png Salamence Hold Salamencite 373M.png Mega Salamence
376.png Metagross Hold Metagrossite 376M.png Mega Metagross
380.png Latias Hold Latiasite 380M.png Mega Latias
381.png Latios Hold Latiosite 381M.png Mega Latios
384.png Rayquaza Learn Dragon Ascent
(Pre Gen. VIII)
384M.png Mega Rayquaza
428.png Lopunny Hold Lopunnite 428M.png Mega Lopunny
445.png Garchomp Hold Garchompite 445M.png Mega Garchomp
448.png Lucario Hold Lucarionite 448M.png Mega Lucario
460.png Abomasnow Hold Abomanite 460M.png Mega Abomasnow
475.png Gallade Hold Galladite 475M.png Mega Gallade
531.png Audino Hold Audinite 531M.png Mega Audino
719.png Diancie Hold Diancite 719M.png Mega Diancie

Devolution

Primal Reversion

Primal Reversion is a similar state to Mega Evolution, but the Pokémon devolve to a previous state in the past.

It is a possible game mechanic in Pokémon Omega Ruby & Alpha Sapphire, most likely because this mechanic was founded during development of Pokémon Omega Ruby & Alpha Sapphire.

Other

Devolution is a form of reverse evolution when a Pokémon reverts to a previous state. The only instance devolution happens in the games is in Pokémon Super Mystery Dungeon, in which the player Pokémon and partner Pokémon evolve and soon devolve three times during the main story, and Pokémon Mystery Dungeon: Gates to Infinity, which includes the Devolve Orb that devolves all enemies in the room.

Devolution is common in the Manga and TCG. It is achieved mainly unnaturally - through experimentation, or Devolution Spray. Though certain Pokémon, such as Isamu's Clefairy and Pikachu are capable of devolving themselves. The TCG also has it that Eeveelutions can revert into Eevee and that Mew has two special attacks named the Devolution Beam and Devo Crush - both of which which devolves the Pokémon hit by the attack. Golurk and Jirachi also possess special attacks which allow them to devolve an opposing Pokémon.

Anime

In Electric Shock Showdown, Misty points out that once Pikachu evolves with the use of the Thunder Stone, Pikachu won't revert.

In An Epic Defense Force, Luke's Golett seemingly evolves to Golurk in a Movie then devolves back to Golett. This repairs the Golurk Statue, since it turns out to be fictitious.

Another instance of the non-existence of devolution, is when Bonnie requested Ash's Frogadier to devolve back to Froakie, Clemont said that it would be impossible.

In relation to reality

Evolution in the Pokémon games is more similar to metamorphosis (the process certain bugs undergo to become an adult) than actual evolution (a long process that happens to populations of creatures).

Trivia

  • There are eight Pokémon that can evolve into two different Pokémon, but only two that evolve into more: Tyrogue (three) and Eevee (eight).
  • As of Generation VIII, there are 87 Pokémon that do not evolve in any way. This is discounting Legendary Pokémon, Mythical Pokémon, and form changes such as Mega Evolution.
  • In Dream a Little Dream from Me!, there is a group of Pokémon who evolved and devolved unnaturally, one actually missing its second evolved form.
  • In Final Rivals!, an evolution has occurred through multiple Pokémon of the same species combining, which was shown by Ash's Meltan and its horde.
  • Larvesta evolves at the highest level out of all unevolved Pokémon so far (level 59).
  • Zweilous evolves at the highest level out of any evolved Pokémon so far (level 64).
  • Porygon is currently the only Pokémon to be able to evolve at level 1 into both its evolutions, as they do not need a certain level to evolve.
  • Generation VII was the first generation to introduce Legendary and Mythical Pokémon capable of evolution.
  • Poipole is the only Ultra Beast that can evolve.
Community content is available under CC-BY-SA unless otherwise noted.