Vulpix

“At the time of birth, it has just one tail. The tail splits from its tip as it grows older.”

— Pokémon Red

“Both its fur and its tails are beautiful. As it grows, the tails split and form more tails.”

— Pokémon Yellow

“As it develops, its single white tail gains color and splits into six. It is quite warm and cuddly.”

— Pokémon Gold