"They do look pretty healthy," Jungkook concedes, glancing overhead again to watch as the sharks smoothly swim on by. Not that Jungkook has any knowledge of what signs to look for that might indicate illness in a shark — but he imagines that if the sharks were upset, there should be a lot more in-fighting between them, scars present on their bodies, none of which he's spotting at a glance. He can't imagine that the smaller fish that share the tank would survive for long, either.

An angry or desperate shark seems like it'd give off a lot more signals than the ones here now, swimming calmly as they are in wide circles.

"And at least this tank's like... the biggest I've ever seen. And we're close enough to the water that like, if the sharks weren't happy, I'm guessing they can probably find a way to get them back to the ocean." Jungkook leans back against the glass of the tunnel, slightly awkward for the way it curves, and toys with the hem of Yoongi's shirt. "Or maybe they do that already, like, keep sharks only for a while and then let them go. So that they don't forget how to hunt and stuff in the wild."