"Realistic CG human has to work a lot harder than a cartoon blob to win the audience's affection." -Victor Navone, Animator, Pixar.
I thinks this stays as a great question on animating non human (Limited Characters). We mostly focus on how to animate Human Like characters which have arms and shoulders to gesture an idea out. But hav you ever wondered on how "Cars" must have been animated?
Well, this will give you an insight. Pixar Animator And a great trainer @ Animation Mentor School, Victor Navone has put up this fantastic article on how to animate 'Limited Characters". Follow the link below to reach.
Source: Vnog Animation