I love animals that are, like, the opposite of cryptids: we know for a fact they exist and have a clear idea of what they look like because we have photographs and individual specimens, but we haven’t the faintest idea where they’re coming from - they just keep showing up out of nowhere, and the locations of their actual population centres are a complete mystery.
From catgirl Izutsumi's chapter in the Adventurer's Guide for Dungon Meshi:
Laois doesn't clock that what's acceptable to do with a cat isn't acceptable to do with a teenage girl, so Chilchuck, father of daughters, accepts that he must suffer if he doesn't want anything else Weird going on.