The mobile phenomenon Pokémon GO is changing up what you can expect to hatch from 7 km eggs. From the official blog:
It appears something strange has happened with the Eggs you can receive from Gifts: 7 km Eggs are now hatching only fossil Pokémon!
Here’s what we know so far. * The fossil Pokémon Omanyte, Kabuto, Aerodactyl, Lileep, Anorith, Cranidos, Shieldon, Tirtouga, and Archen are now the only Pokémon hatching from 7 km Eggs. * These fossil Pokémon will no longer be hatching from 2, 5, and 10 km Eggs. * Riolu will now be hatching from 10 km Eggs.
Since there’s no end date mentioned, we recommend trainers hatch as fast as possible if they’re after one of these Pokémon. Tirtouga and Archen will make great additions to your collection.
Let us know if you like this egg-citing new event in the comments below or on Discord!