Finally we can do the advanced creature animation, I chose a cat model to do the animation. There are some reference video below:

I think it’s much more harder than the human animation, it has four legs and a lot of controller on its muscle. The important thing is the cat and human’s body structure and movement are completely, so we can only watch their law of motion to learn instead of use our body to feel the motion, so that will be much more harder to the people who first learn the creature animation.

After watching the video I kinda figure it out how the cat walking, left front leg–right hind leg–right front leg–left hind leg, then repeat.

Of course there are many muscles move together while the legs are moving. There are lots of controllers rig the muscles, I need to watch many reference videos to understand its movement.