There is no CrazyTalk Animator 8.
The product you mean is called CrazyTalk 8
and is a talking head creator. It can create 3D and 2D talking heads from photos but importantly it doesn't animate bodies, only heads.
Our latest full-bodied 2D animator is called Cartoon Animator 4
which just released. With this, you can create 2D talking heads from photos like CrazyTalk 8, but you can also create full-bodied characters and add props and scenery to create professional level 2D animated movies and live presentations.
So to answer your question, both products will allow you to create talking animals. Crazytalk 8 will be the easiest to learn and use, but if you may also want to create and animate full-bodied characters, and have multiple characters on screen at the same time, then Cartoon Animator 4 will be the best choice.