You would have thought all 151 Pokémon would have been found by now, but it looks like there is still one Pokémon that has not been found yet and trainers are desperately trying to find it. Ditto, #132 in the Official Pokémon Pokédex, is the mysterious unfound Pokémon that is lingering somewhere in the world.
With no one able to find it yet, questions are being raised on where to find it. Ben Gilbert via Business Insider goes into detail:
Fans think there’s a good reason for that: the nature of what Ditto is. Look no further than — what else? — the Pokédex for more on this logic.
“Ditto rearranges its cell structure to transform itself into other shapes. However, if it tries to transform itself into something by relying on its memory, this Pokémon manages to get details wrong.”
Of course! As Reddit user “validproof” explains, when Ditto was introduced originally (on the Pokémon cartoon in the 1990s), it was a sort of mutant Pikachu. “What is interesting is that it is unable to fully transform in the beginning, and so it says ‘Pikacha’/’Pikachan.’ validproof wrote on Reddit.
All of which is to say: Ditto is almost certainly hiding in plain sight.
There you have it, until someone finds the actual Pokémon, we are to believe it is just in plain sight, or it’s somehow morphed into another Pokémon. We’ll wait until Nintendo gives us some closure on the matter.