I've been looking into nonhuman linguistics a lot, and just generally interested in nonhuman linguistics, lately. I was going through some cat videos suggested to me in my "inspiration" tab, cus of all the cat facts I've been doing, and had some nerd thoughts.

I've just realized... cats having conversations with each other make a lot of facial movements, don't they? Like, we already know about their fairly in-depth body language systems that are pretty universal between most cats, and we know about feline calls (meow = associative/signal, like "hi" or "hello" on associative and "hey" on signal, mraa = warning, etc), but I haven't seen anything about anything related to their facial movements, which they do a LOT of.

Might they be doing facial signing? You know, doing the actual informational conversation part with their facial muscles, similar to hand sign languages we use as humans. If they are, it might be an extremely good idea to try to capture a lot of footage of cat conversations on a high-speed camera, and organize them by city and declare individuals with ref names. I know this is a fairly difficult task (cats are infamously difficult to visually study due to not sitting still) but if this is what they're doing, and some group were to succeed with this, it may be a breakthrough in nonhuman linguistics and feline behaviour studies.