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>Because Azurill's gender ratio does not match that of its evolved forms and its evolution is not dependent on gender, being female 75% of the time while Marill and Azumarill are female only 50% of the time, female Azurill have a one in three chance of evolving into a male Marill prior to Generation VI. Whether or not this will happen is determined by its personality value. Azurill is the only Pokémon to do this.
Trans Pokémon?