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Pikachu Isn't a Mouse After All—He's a Squirrel! - Nerdist
Pokemon Designers Reveal Pikachu Was Inspired By A Squirrel - My Nintendo News
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Is Pikachu a mouse or a squirrel? - Quora
Is Pikachu a mouse or a squirrel? - Quora
Is Pikachu a mouse or a squirrel? - Quora