Pokémon that were originally discovered in the Sinnoh region have recently begun showing up in Pokémon GO, and you can prepare yourself for the arrival of more during this special Hatchathon event. Until November 27, 2018, at 1 p.m. PST, some Pokémon with evolved forms originally discovered in the Sinnoh region—such as Rhyhorn, Porygon and Magby—are present in 2 km Eggs. There will be other Pokémon showing up in these 2 km Eggs as well, and you may even hatch a Shiny Elekid. In addition, you can now hatch Eggs even when Pokémon GO isn’t launched by activating the new Adventure Sync feature.
Source: @PokemonGoApp
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