The mouse family, Tandemaus, has finally come to Pokémon Go
source https://www.polygon.com/pokemon-go-guide/24200470/better-together-ultra-unlock-event-timed-research
Pokémon Go ‘Better Together’ Ultra Unlock event guide
The mouse family, Tandemaus, has finally come to Pokémon Go
source https://www.polygon.com/pokemon-go-guide/24200470/better-together-ultra-unlock-event-timed-research