What Kind of Creature Is Pokémon's Hitmonlee?

It's never really been explained what type of creature Hitmonlee is, though the Pokemon is obviously inspired by a famous martial artist.

All of Hitmonlee's weaknesses in Pokemon GO

Pokémon Go's Tyrogue and how to evolve into Hitmontop, Hitmonlee

Pokemon 8106 Mega Hitmonlee Pokedex: Evolution, Moves, Location, Stats

Pokemon small sticker Hitmonlee

Hitmonlee-Holo 1999 Pokemon TCG Fossil #7/62 - 1999 - US

Pokemon Hitmonlee Uncommon Reverse Holo 094/202 Sword & Shield NM

Pokemon Sword and Shield Hitmonlee

Hitmonlee (Boxing Gloves) by Lunarserenade on DeviantArt

Pokemon TCG store for Beaker Breaks. Singles, boosters, slabs & live breaks.

Hitmonlee #7 Pokemon Fossil

Hitmonlee - Pokémon Card 151 Japanese – Collectors Bodega