I guess this is called 'creature animation', although I always think of monsters when I hear that. It's some animation I did for a family movie called "Dog Gone". I picked these scenes because they were the first time we see these characters and I wanted to see how realistic I could make them.
It's a little confusing without the set-up but there is a chocolate bar on a string hanging from a tree as bait and the squirrels are trying to get it. Later in the film the squirrels become more anthropomorphic and behave more like humans which is why they were animated.
This file is silent so there is no chattery squirrel voices.