Niantic has announced an April Fool's Special Research project which will be available to obtain on Friday, April 1st, 2022. Ditto will also be available more frequently and you might have a chance to get a shiny one!

April Fools’ 2-Oh?-22

Trainers,
... ... ...
Ditto. Ditto everywhere.

Special Research

Available to claim from Friday, April 1, 2022, at 12:00 a.m. to Friday, April 1, 2022, at 11:59 p.m. local time.

Professor Willow has some new Special Research for Trainers to help out with. At least...we think he does. Is that actually Professor Willow? Are you actually one of his trusted Trainers? We can’t tell what is and isn’t Ditto anymore.

A Ditto changeup

Beginning Friday, April 1, 2022, at 12:00 a.m. Ditto appears to be changing into different Pokémon in the wild.


: If you’re lucky, you might encounter a Shiny one!

A Ditto surprise!

From Friday, April 1, 2022, at 5:00 p.m. to Friday, April 1, 2022, at 8:00 p.m. local time. The following Pokémon will appear more frequently in the wild! Which ones are actually Ditto?


Ekans, Gastly, Natu, Surskit, Finneon, Dwebble, Swirlix

: If you’re lucky, you may encounter a Shiny Pokémon—including Shiny Ditto!

Ditto stickers

You’ll be able to get event-themed stickers by spinning PokéStops, opening Gifts, and purchasing them from the in-game shop.


Source: https://pokemongolive.com/en/post/april-fools-2022/