She is sitting in the library, studying. It's her most common pastime, by hours; spending time with her sister is more enjoyable but Jaromira prefers to socialize more broadly and Katarzyna would only get in the way. This is better on net; the two of them share a room, so it isn't as though her sister's time is entirely hogged by the other girls who call this boarding school "home." Or at least "prison." Katarzyna doesn't mind it, though; the school library is excellent, and basic manners and care for the books has endeared her to the librarian to a sufficient degree to lubricate the interlibrary loans process when there's something she wants to read that they don't have.
"The heaviest bony fish--as opposed to cartilaginous fish like sharks--are the members of the genus mola, also known as sunfish. They eat jellyfish and look incredibly silly. They're harmless but curious."
"It's weird that an animal can look incorrect! You'd think either they'd all be weird or none of them would be weird. But like, jellyfish, jellyfish don't look incorrect even though ancestrally we wouldn't have seen many of those around either."
"We don't have anything for jellyfish to be an incorrect version of, though, and there are lots of other fish that were around in the ancestral environment."
"So you think this is purely cultural and sunfish don't look incorrect if you see them all the time?"
"It could be. It could also be that we're programmed to find sunfish incorrect but wouldn't be if we hadn't evolved around other fish."
"Hmm, I guess. Why don't penguins look incorrect? They don't look like paradigmatic birds, but they don't look incorrect."
"I don't know...maybe it's because penguins make sense, and sunfish are just objectively ridiculous."
"Their primary food is jellyfish. Do you know how many calories and nutrients there aren't in a jellyfish?"
"I can't say I've ever tried to subsist on one, but it seems to be working okay for sunfish."
"This is true, but it is bizarre that it's true. Well, evolution will fill every niche available, I suppose."
"Fortunately, I care even less for the opinions of sunfish than I do the opinions of other humans who are judging me."
"But maybe sunfish are the only holders of secret aesthetic wisdom. Maybe with a sunfish theme we could be omnipotent!"
"Hmm. I suppose if the human form is objectively incorrect, that would explain why things like wings and tails generally win one points."
"I have startled myself with the occasional weird opinion on cryptid appearances but I think I also prefer that you not be a sunfish."