What kind of animal is Jigglypuff?

What kind of animal is Jigglypuff?
Jigglypuff (Pokémon)

Jigglypuff Balloon Pokémon プリン Purin #039 Images on the Bulbagarden Archives
Type Normal Fairy Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown

Shape
Footprint {{{form2}}}

Pokédex color Pink
Base friendship 70

Jigglypuff (Pokémon)
Jigglypuff Balloon Pokémon プリン Purin #039 Images on the Bulbagarden Archives
Type Normal Fairy Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown
Shape Footprint {{{form2}}}
Pokédex color Pink Base friendship 70