I did. But it's like I said before. Just about every animal asides from a cat, dog, and human being do the exact same thing. I get what you guys are saying, but "fish face" is such a dumb term for me.
We have more muscles in our faces than fish, which gives us a larger range of lip movement. Most mammals also tend to have more muscle movement in their mouths. Fish don't. KH characters with prerendered faces don't.
And that is the history of fish face.