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'''Egg groups''' determine which Pokémon are able to interbreed in [[Pokémon breeding]]. [[Pokémon]] were first able to breed in the [[Generation II|Second Generation]] games [[Pokémon Gold]] and [[Pokémon Silver]]. [[Breeding]] allowed Pokémon to pass down [[DVs]] and moves to their children. Moves usually are inherited from the male Pokémon, while the child takes on the form of the mother in her basic form. A baby would hatch out of an egg after a specified number of steps in the game and would always be at level five.

When breeding, one typically has a 50/50 chance of getting male or female Pokémon. If the Pokémon is a [[Starter Pokémon]], or any of a number of other types which have different gender ratios than 50-50, the results are skewed.  Some Pokémon are genderless; some species can be only male or only female.


=Breeding Chains=
Many Pokémon are included in two different egg groups and can form what are known as breeding chains.  These link many unrelated Pokémon together, allowing moves that would not normally be accessible to certain Pokémon to be legal, like Heal Bell on Blissey.

[[TM]]s are also passed down through breeding through male Pokémon. Doing this would cause the moves to appear in the Pokémon's moveset if said Pokémon can learn the move via TM or [[Egg Move]].

=Egg Groups=
== Ditto ==
 
Ditto can breed with any Pokémon except for [[Legendary Pokémon]]. However, Ditto can also breed with What is known as Gender unkown Pokémon.

=== Gender unknown ===
<span id="Gender unknown" />
The following genderless Pokémon may only breed with Ditto.

Shedinja, Magnemite, Magneton, Voltorb, Electrode, Lunatone, Solrock, Baltoy, Claydol, Staryu, Starmie, Beldum, Metang, Metagross, Shedinja.

== No eggs ==
<span id="No eggs" />
The following Pokémon are incapable of breeding.

Azurill, Igglybuff, Pichu, Wynaut, Regirock, Regice, Registeel, Latias, Latios, Kyogre, Groudon, Rayquaza, Jirachi, Deoxys, Nidorina, Nidoqueen, Articuno, Zapdos, Moltres, Mewtwo, Mew, Cleffa, Togepi, Unown, Tyrogue, Smoochum, Elekid, Magby, Raikou, Entei, Suicune, Lugia, Ho-Oh, Celebi. '''(Group X)'''

== Plant ==
<span id="Plant" />
Many [[Grass (type)|Grass-type]] Pokémon belong to this group:

Lotad, Lombre, Ludicolo, Seedot, Nuzleaf, Shiftry, Shroomish, Breloom, Oddish, Gloom, Vileplume, Bellossom, Cacnea, Cacturne, Tropius, Bulbasaur, Ivysaur, Venusaur, Paras, Parasect, Bellsprout, Weepingbell, Victreebel, Exeggcute, Exeggcutor, Tangela, Chikorita, Bayleef, Meganium, Hoppip, Skiploom, Jumpluff, Sunkern, Sunflora. '''(Group 1)'''

== Bug ==
<span id="Bug" />
Many [[Bug (type)|Bug-type]] Pokémon belong in this group:

Wurmple, Silcoon, Beautifly, Cascoon, Dustox, Surskit, Masquerain, Nincada, Ninjask, Volbeat, Illumise, Trapinch, Vibrava, Flygon, Pinsir, Heracross, Caterpie, Metapod, Butterfree, Weedle, Kakuna, Beedrill, Paras, Parasect, Venonat, Venomoth, Scyther, Ledyba, Ledian, Spinarak, Ariados, Yamna, Pineco, Forretress, Gligar, Scizor, Shuckle.'''(Group 2)'''

== Flying ==
<span id="Flying" />
This is the group to which most of the [[Flying (type)|Flying-type]] Pokémon belong:

Taillow, Swellow, Wingull, Pellipper, Zubat, Golbat, Crobat, Doduo, Dodrio, Skarmory, Swablu, Altaria, Natu, Xatu, Pidgey, Pidgeotto, Pidgeot, Spearow, Fearow, Farfetch'd, Aerodactyl, Hoothoot, Noctowl, Togetic, Murkrow.'''(Group 3)'''

== Humanshape ==
<span id="Humanshape" />
The humanoid Pokémon belong here, including many [[Fighting (type)|Fighting-type]] and [[Psychic (type)|Psychic-type]] Pokémon:

Abra, Kadabra, Alakazam, Makuhita, Hariyama, Sableye, Machop, Machoke, Machamp, Meditite, Medicham, Volbeat, Illumise, Spinda, Cacnea, Cacturne, Drowzee, Hypno, Hitmonlee, Hitmonchan, Hitmontop, Chansey, Blissey, Mr. Mime, Jynx, Electabuzz, Magmar.'''(Group 4)'''

== Mineral ==
<span id="Mineral" />
[[Rock (type)|Rock-type]] Pokémon, [[Ground (type)|Ground-type]] Pokémon and a [[Steel (type)|Steel-type]] Pokémon belong in this group.

Geodude, Graveler, Golem, Nosepass, Onix, Steelix, Snorunt, Glalie, Sudowoodo.'''(Group 5)'''

== Indeterminate ==
<span id="Indeterminate" />
[[Poison (type)|Poison-type]] Pokémon, [[Ghost (type)|Ghost-type]] Pokémon and a few others beclong in this group.

Ralts, Kirila, Gardevoir, Gulpin, Swalot, Slugma, Magcargo, Grimer, Muk, Koffing, Weezing, Castform, Shuppet, Banette, Duskull, Dusclops, Chimecho, Wobbuffett, Gastly, Haunter, Gengar, Misdreavus.'''(Group 6)'''

== Ground ==
<span id="Ground" />
[[Fire (type)|Fire-type]], [[Water (type)|Water-type]], [[Normal (type)|Normal-type]], [[Dark (type)|Dark-type]], [[Electric (type)|Electric-type]] and [[Ice (type)|Ice-type]] Pokémon belong to this group.

Torchic, Combusken, Blaziken, Poochyena, Mightyena, Zigzagoon, Linoone, Seedot, Nuzleaf, Shiftry, Slakoth, Vigoroth, Slaking, Whismur, Loudred, Exploud, Skitty, Delcatty, Mawile, Electrike, Manectric, Wailmer, Wailord, Numel, Camerupt, Torkoal, Spoink, Sandshrew, Sandslash, Spinda, Zangoose, Seviper, Kecleon, Absol, Vulpix, Ninetales, Pikachu, Raichu, Psyduck, Golduck, Girafarig, Phanpy, Donphan, Rhyhorn, Rhydon, Spheal, Sealeo, Walrein, Rattata, Raticate, Ekans, Arbok, Nidoran♀, Nidoran♂, Nidorino, Nidoking, Diglett, Dugtrio, Growlithe, Arcanine, Ponyta, Rapidash, Farfetch'd, Seel, Dewgong, Tauros, Eevee, Vaporeon, Jolteon, Flareon, Espeon, Umbreon, Cyndaquil, Quilava, Typhlosion, Sentret, Furret, Mareep, Flaaffy, Ampharos, Aipom, Wooper, Quagsire, Dunsparce, Snubbull, Granbull, Sneasel, Teddiursa, Ursaring, Swinub, Piloswine, Delibird, Houndour, Houndoom, Smeargle, Milktank.'''(Group 7)'''

== Water 1 ==
<span id="Water 1" />
This is the group to which most of the [[Water (type)|Water-type]] Pokémon belong:

Mudkip, Marshtomp, Swampert, Lotad, Lombre, Ludicolo, Wingull, Pellipper, Surskit, Masquerain, Goldeen, Seaking, Marill, Azumarill, Corphish, Crawdaunt, Feebas, Milotic, Psyduck, Golduck, Spheal, Sealeo, Walrein, Clamperl, Huntail, Gorebyss, Corsola, Horsea, Seadra, Kingdra, Squirtle, Wartortle, Blastoise, Poliwag, Poliwhirl, Poliwrath, Politoed, Slowpoke, Slowbro, Seel, Dewgong, Lapras, Omanyte, Omastar, Kabuto, Kabutops, Dratini, Dragonair, Dragonite, Totodile, Croconaw, Feraligatr, Wooper, Quagsire, Remoraid, Octillery, Delibird, Mantine.'''(Group 8)'''

== Water 2 ==
<span id="Water 2" />
This is the group to which some [[Water (type)|Water-type]] Pokémon belong:

Goldeen, Seaking, Magikarp, Gyarados, Carvanha, Sharpedo, Wailmer, Wailord, Barboach, Whishcash, Relicanth, Chinchou, Lantern, Luvdisc, Shellder, Cloyster, Quilfish, Remoraid, Octillery.'''(Group 9)'''

== Water 3 ==
<span id="Water 3" />
This is the group to which some [[Water (type)|Water-type]] Pokémon belong:

Tentacool, Tentacruel, Corphish, Crawdaunt, Lileep, Cradily, Anorith, Armaldo, Corsola, Omanyte, Omastar, Kabuto, Kabutops, Remoraid, Octillery.'''(Group 10)'''

== Monster ==
<span id="Monster" />
These are Pokémon that are monster-like.

Treecko, Grovyle, Sceptile, Mudkip, Marshstomp, Swampert, Whismur, Loudred, Exploud, Aron, Lairon, Aggron, Bulbasaur, Ivysaur, Venusaur, Charmander, Charmeleon, Charizard, Squirtle, Wartortle, Blastoise, Nidoran♀, Nidoran♂, Nidorino, Nidoking, Slowpoke, Slowbro, Slowking, Cubone, Marowak, Likitung, Kangaskhan, Lapras, Snorlax, Chikorita, Bayleef, Meganium, Totodile, Croconaw, Feraligatr, Mareep, Flaaffy, Ampharos, Larvitar, Pupitar, Tyranitar.'''(Group 11)'''

== Fairy == 
<span id="Fairy" />
These Pokémon are considered to be shaped like fairies, and as such are part of the Fairy breeding group.  They are:

Shroomish, Breloom, Marill, Azumarill, Skitty, Delcatty, Mawile, Plusle, Minun, Roselia, Jigglypuff, Wigglytuff, Castform, Pikachu, Raichu, Snorunt, Glalie, Clefairy, Clefable, Hoppip, Skiploom, Jumpluff, Snubull, Granbull.'''(Group 12)'''

== Dragon ==
<span id="Dragon" />
[[Dragon (type)|Dragon-type]] Pokémon, along with those that resemble Dragons, are in this group.

Treecko, Grovyle, Sceptile, Magikarp, Gyarados, Swablu, Altaria, Seviper, Feebas, Milotic, Horsea, Seadra, Kingdra, Bagon, Shelgon, Salamence, Charmander, Charmeleon, Charizard, Ekans, Arbok, Dratini, Dragonair, Dragonite.'''(Group 13)'''

=Special Notes=
Other important facts about breeding:
<br>
Azurill and Wynaut can be bred only by giving the father(/mother?) a Sea or Lax Incense to hold. (respectively)
<br>
Pichu will acquire {{m|Volt Tackle}} if the father(/mother?) is holding a Light Ball, but only in [[Pokémon Emerald]].
<br>
Also only in Emerald, if either (?) parent is holding an Everstone, then the [[Natures|nature]] of that parent will be passed down.
[[Category:Game mechanics]]