As a Pokémon expert, I can tell you that Charizard evolves from its pre-evolution, Charmeleon, which in turn evolves from the original form, Charmander. This evolution process occurs in the Pokémon animated series, and it's a significant moment for fans of the show.
In the Pokémon anime, Charizard evolves in
Episode 40, titled "The Battle of the Badge". This is the episode where Ash's Charmeleon evolves into a Charizard during a battle against Lt. Surge's Raichu, as Ash is trying to earn his third gym badge in the Kanto region.
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