Meowth can talk because he painstakingly taught himself to speak human language and walk upright like a human. In the Pokémon anime, Meowth reveals that he learned to speak and walk like a human to impress a female Meowth who preferred humans over him. He practiced at a local dance academy and used a picture book to sound out words. Unlike other Pokémon, which typically communicate using their own names or psychic powers, Meowth is unique because he physically learned the human language through hard work and motivation. This was not a natural ability but a learned behavior, and as a trade-off, Meowth lost the ability to use his species' signature move "Pay Day" and cannot fight as effectively. Essentially, Meowth's ability to talk is due to his exceptional dedication to learning human speech for love, making him a rare exception among Pokémon.
