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>In PokéPark Wii: Pikachu's Adventure, if you stand still in the Iceberg zone for a few seconds, Pikachu will shiver. Why does he shiver if he has fur to keep him warm?
>Because he isn't adapted to an arctic environment. His fur isn't thick enough to protect him from the cold entirely. Put just about any animal that's used to warmer climates in the arctic and it'll die of hypothermia within a day.