Counter-part Pokémon

&nbsp Counter-part pokemon are Pokemon that have some kind of link to each other but are usually unrelated in terms of evolution. Many of these counter-parts are legendaries.

Nidoran and Nidoran
While they are almost the same, they are classified as two seperate Pokemon and their evolutions are Counter-parts being Male or female only.

Hitmonlee and Hitmonchan
Until it was revealed that they had a common pre-evolved form and another alternative evolution, they were considered counter-parts.

Elekid, Electabuzz, Electivire and Magby, Magmar, Magmortar.
When pre-evolved forms for Jynx, Magmar and Electabuzz were released, the three could have been considered a trio of counter-parts until Electivire and Magmortar were released, removing Jynx and Smoochum from the picture.

Tauros and Miltank
Both resemble cows and can only be one gender. They are one of the less commonly acknowledged Counter-parts but often appear next to each other in Region Pokedexes.

Mewtwo and Mew
The two Legendary Pokemon have similar attacks, abilities and appearances as well as the back-story of Mewtwo being a clone of Mew.

Murkrow, Honchkrow and Misdreavus, Mismagius.
Both were version exclusive in Diamond and Pearl and both evolve with a Dusk Stone.

Lugia and Ho-oh
these Legendary version mascot are counter-parts, each apperar in only one out of HeartGold and SoulSilver (until you complete the main story) and both are leaders of Legendary Trios (Lugia=Articuno, Zapdos, Moltres and Ho-oh=Raikou, Entei and Suicune)

Lotad and Seedot
Both are grass types, version exclusives and evolve under the same conditions.

Gardevoir and Gallade
Although both evolve from Kirlia, they are both very gender orientated, Gardevoir being feminine and Gallade being masculine

Plusle and Minun
Despite having no relation in terms of evolution, they look almost identical and their abilities only work when used together.

Volbeat and Illumise
Both are Firefly Pokemon and can only be one gender.

Zangoose and Seviper
The first example of Counter-parts that don't look similar or have some kind of friendship. In fact they hate each other and fight all the time.

Solrock and Lunatone
They are both genderless, both the same type, both version exclusive and represent the sun and moon, which are opposites.

Latias and Latios
Another example of version and gender exclusives, Latias and Latios are the only examples of legendaries (other than Manaphy) that could theoretically breed (although it's impossible in-game).

Groudon and Kyogre
Version exclusive version mascots which represent the land and the sea. Another example of a red and blue Counter-part.

Stunky and Glameow
Both version exclusive and both are used by team Galactics Jupiter and Mars respectively.

Bonsly and Mime Jr.
Both are version exclusive and evolve in the same way.

Dialga and Palkia
Version mascots for Diamond and Pearl control Time and Space which are often used together.

Cresselia and Darkrai
Both are related to the moon, Darkrai causes bad dreams and Cresselia cures them and Cresselia is female while Darkrai is genderless but masculine.

Throh and Sawk
Both are Fighting type and look similar as if wearing a judo uniform with a black belt.

Karrablast and Shelmet
These pokemon can only evolve when traded with each other.

Braviary and Mandibuzz
A male and female counter-part pair who are based on American settlers and native Americans.

Heatmor and Durant
These are rivals like Seviper and Zangoose.

Reshiram and Zekrom
The ultimate counter-parts represent Yin and Yang.