In addition to importing props and characters from external formats into iClone, you can also bring in monsters, animals, and all sorts of weird creatures as well. These character types generally don't have a standard bone rig such as standard or non-standard human characters. This gives you less flexibility as far as motion tools, but more freedom in that you can define them as props as well. Check out this tutorial for how to import a fearsome Kraken along with animations as well as a casual cow.
0:30 Character Types
2:04 Importing Non-Human Characters as Props
06:51 Importing Non-Human Characters as Avatars
10:44 Animating Non-Human Characters