Looking for animated animals

I wonder if anyone have animated animal models?
Style and polycount doesn’t matter. I need it for my experiments with animation.
There is Mixamo for biped creatures, but other cases remain uncovered.

I sometimes am looking for the same use case. Still didn’t tried, but I happen to found st. here in Blender that’s in theory easy to port…

https://blenderartists.org/forum/showthread.php?441157-Addon-FishSim-Fish-Simulator&p=3259360#post3259360