“All cats are autistic” or so the joke goes.

Don’t like being touched except on their terms, don’t like eye contact, very particular about food, will screech if overwhelmed.

For actual info and not the joke, unsure. Not a vet, I just ask the vet weird questions! Because I’m autistic.

There’s no reason why not, at least in mammals.

Though, i think i read once about how human neurons can connect to 7 instead of 4 (or som.) others compared to other hominids, with the price of higher rate of neurological issues.