Ah Paperdoll.... You think he is incorrect in talking about our animal brain? Well... just let me go off here real fast:

First off, evolution has caused us to have multiple pieces in our brain that have designated functions. Instead of our whole brain just evolving and changing, basically it just built on top of the old. For instance, our limbic system is that of reptilian nature, an old system in our bodies that needed little change. That is one of our so called "animal brains". There is also some other lower fucntioning parts of the brain, but I can't remember them all off the top of my head. I wrote an article about a while ago, having to do with the dual nature of man and how this is nearly inherent in our psychology and the physical nature of our minds. If you don't believe me I'll get the facts and post 'em later.