“How can they be fish?” Martha asked. “I mean, they’re walking around on land and breathing air!” They were also wearing clothes but somehow that seemed less extraordinary than seeing the fish-like beings wandering around the marketplace as if they were perfectly at home on the land.
“Evolution. You know, there are fish on earth that can breathe out of water for a while; these people have just had a few million years longer to master the art.”
“So they’re literal fish out of water.”
“You might say that, just not to their faces. They can be a bit touchy.”