What are the Ultra Beasts?

Pokémon Ultra Sun and Ultra Moon/Ultra Beasts — StrategyWiki

I tried to make custom shinys for Ultra beasts (I forgot Zeraora wasn't a Ultra beast) and I think some of them came out really good. : r/MandJTV

All Ultra Beasts in Sword and Shield - PokeFlash

Looking Back at Pokemon's Ultra Beasts, the Strangest Gimmick in the Franchise

ArtStation - Ultra Beast starters sketch

Pokemon Ultra Beasts Pheromosa-GX Premium Collection

designing NEW ULTRA BEASTS

Pokémon Go confirms arrival of Ultra Beasts

Pokedex-Ultra Beasts by Snukastyle on DeviantArt

Guide: How To Catch Cosmog, Poipole, And Ultra Beasts In Pokemon