In a Pokemon GO first, a Melbourne man has managed to catch Ditto. Recounting the epic encounter on Twitter, he caught a Rattatta which then quickly transformed into a Ditto. He cites that the CP and coloured circles for level looked odd.
That DITTO life…. #PokemonGo pic.twitter.com/jQBdZEYyMS
— Anth (@aartusa) November 22, 2016
https://twitter.com/aartusa/status/801212377500815360
There have been other reports of other Pokemon hunters having their Zubat turn into Ditto.