The Animal Realm is marked by ignorance and complacency. Animal Beings are stolidly un-curious and are repelled by anything unfamiliar. They go through life seeking comfort and avoiding discomfort. They have no sense of humor.
Animal Beings may find contentment, but they easily become fearful when placed in a new situation. Naturally, they are bigoted and likely to remain so. At the same time, they are subject to oppression by other beings -- animals do devour each other, you know.