Pokémon Sun and Moon/Ultra Beasts — StrategyWiki

Ultra Beasts are unusual creatures from another dimension. The Aether Foundation researches them. They all have a signature ability shared: Beast Boost.

Pokémon Sun & Moon - The Ultra Beasts

Cherrygrove City, Pokémon Wiki

Pokémon Sun and Moon - Ultra Beast quests, locations, and how to catch them

Pokémon Sun and Moon's Ultra Beasts are yours for the taking - Polygon

Pokémon Sun and Moon Walkthrough - Part 27: How to catch Ultra Beast NIHILEGO! (Post game)

Pokémon Ultra Sun & Moon

Pokémon Stadium 2 - Bulbapedia, the community-driven Pokémon encyclopedia

Pokémon Sun and Moon - Ultra Beast quests, locations, and how to catch them

Ultra Beasts - Pokemon Sun & Pokemon Moon Guide - IGN

Ultra Beasts - Pokemon Sun & Pokemon Moon Guide - IGN

Pokémon's Ultra Beasts get stranger in Ultra Sun and Ultra Moon - Polygon

Pokémon Sun and Moon/Version differences — StrategyWiki