[ Yata isn't really that good with geology. Or any study, for that matter. So Bolin's apparent lack of expertise goes over his head. Yata's more interested in entertaining the thought, anyway. ]

What? Those are the coolest parts of all! I've never been on a floating island before. It's pretty sweet. Didja see all those birds that started flying in? After we beat the boss? They came in droves! [ Not really, but you get the idea. ] There were eagles and parrots and three-legged crows...