So, thanks to Janice for this one.
A study by animal behavior researchers in Batesville* shows that cats are expressive. By which they don't means half a dozen expressions but more like 276. A good example of scientists 'discovering' something pretty much all cat-lovers already knew.
The main gap in this project is that they didn't expand it to include cat interacting w. people
Here's the link.
*(in the NE corner of Arkansas, within about an hour's drive of Memphis; we lived near here in Jonesburo for about a year when I was growing up)