Vulpix are pure Fire-type Pokémon introduced in Generation I. If exposed to a Fire Stone, a Vulpix will evolve into a Ninetales.
Vulpix has an Alolan form that is Ice-type rather than Fire-type. Alolan Ninetales is also Ice-typed, so in order to evolve, an Alolan Vulpix needs to be exposed to an Ice Stone instead.
Vulpix are a Pokémon species that resemble small foxes with 6 curly tails. At birth, a Vulpix has only one white tail, which apparently splits into more tails and grows more beautiful and warmer as it grows older. A Vulpix's fur is colored red-brown with a white-shaded underbelly. They also possess orange bangs and locks on top of the head. They have brown eyes.