Well, yes an'no? I mean, we've all been yanked from our own worlds, but nothin's come up as a "culprit", so for all we know, it could just be some kind'f weird natural phenomenon here. That or one of th'more powerful Pokémon pullin' us here for some reason, or screwin' up and pullin' us here by accident. [He rubs the back of his head; yay lack of straight answers! Does Arceus count as an alien?]

Yeah, I'm human; apparently if someone who isn't human ends up here, somethin' about the transition makes'em human while they're here.

[Oh hey that kind of left a hole in his answer didn't it?] Er, I mean, I've always been human - was back home, too!