[He shrugs about the height. Nothing he can do about it with the fact he's tall and that both his mother and father were at minimum 6ft tall!]

Don't ask me, I grew up learning those things and grew up around the research, so of course I would know about it. [a sigh and shake of his head, not surprising that the kid wouldn't know about that. Oh well time to explain it as simply as possible.]

Ultra Beasts are... Err... Pokémon from different dimensions, different universes and worlds than ours. Not from our planet, but from one entirely different. Your friend there is one too, but... Should be bigger.