One of the Eevees in the PC box had the hidden ability adaptability. I definately caught it in the wild, as I do not have a normal-type friend yet, (if Eevee can even be caught in there,) and it wasn't a horde battle.(if it can be caught in a horde) I was thinking: eh? so I checked the ID No., and it was the excact same as my starter Pokemon: Greninja!
So how did that Eevee have the hidden ability? I'm confused, help!