Pokemon Go confirms arrival of Ultra Beasts including Nihilego - Dexerto

Niantic appears to have confirmed that Ultra Beasts are coming to Pokemon Go, with the jellyfish Nihilego leading the way.

News - August, 2022

A Field Guide to the Ultra Beast Arrival Event (PvP and PvE Analysis)

Pokemon Go Fest 2022 Raids schedule & Legendary lineup - Dexerto

News - August, 2022

Pokemon GO: Best Moveset For Groudon and Primal Groudon

Ultra Beast Arrival: Global - Leek Duck

Pokemon GO Ultra Beast Arrival Timed Research: Tasks and rewards

Nihilego Is Coming: Pokémon GO Teases The Arrival Of Ultra Beasts

Pokémon Go's mystery event will let you catch all seven Ultra Beasts

Pokemon Go Ultra Beast Arrival Global event: Raids, Timed Research, Beast Balls - Dexerto

Pokémon GO News

Nihilego, Villains Wiki

A Field Guide to the Ultra Beast Arrival Event (PvP and PvE Analysis)