>>56619628>People do not know.Yes.
>The egg shell is made from dirt and plants.No. That's an unconfirmed theory that's said to be unlikely by the professor who thought of it and disregarded by all the other professors. The official explanation is that none of the professors know and and that the most accredited theory is that Pokémon simply find the "eggs".
>>56620092According to the Riolu episode in the 2019 anime the most credible theory is still that Pokémon just randomly find the eggs (but no one knows for sure). Elm's theory remains an unconfirmed theory, the truth is unknown.
