There are a lot of very interesting angles for people to toy with in this sort of setting.  For example:<br/><br/><strong>Pure Animals:</strong>Just regular 'ole animals.  Completely untampered by genetic technology.  The sort of beasties you'd expect to find on a normal farm.<br/><br/><strong>Sentient Animals:</strong>Regular animals that have been tampered with until they have become fully sentient creatures.  Does not necessarily mean that they are able to speak in human languages, but they would be able to understand it and act at a human or just-below-human level.<br/><br/><strong>Mind Transplanted Animals:</strong>What you've described in your post Mathim.  Regular animals whose brains have been replaced with that of a human.  The sort of victim who has undergone a treatment this drastic would have to come to terms with their new form and try to reconcile their intelligence with an animal's body.<br/><br/><strong>Humans:</strong>Boring!<br/><br/><strong>Genetically "Enhanced" Humans:</strong>Extra cocks?  Hermaphrodites?  Cat eyes, or enhanced reflexes?  This category mostly includes humans who have been modified at their own request, like a number of the farmhands.<br/><br/><strong>Genetically Spliced Humans (Intelligent):</strong>Something Haibane was discussing earlier.  Humans who have been altered to look like animals, but not necessarily to act like them.  They would be treated like animals despite having a predominantly human-like form and an untouched human brain; demeaned, used, and humiliated into obedience.<br/><br/><strong>Genetically Spliced Humans ("Dumbed Down")</strong>Humans like Molly and Musco, who have been genetically altered into animalistic forms and have had their minds tampered with to make them act more like animals instead of people.  Individuals that fall under this category believe themselves to be nothing more than animals, even if they retain the power of speech.<br/><br/><strong>Mind Transplanted Humans:</strong>The opposite of Mind Transplanted Animals, these humans have had their brains replaced with those belonging to animals.  While most would be understandably bewildered by their new form, they are not capable of higher brain functions like a normal human.  Particularly cruel games could be played by making the Animal-With-A-Human-Brain watch silently in horror as their old body is forced to do any number of demeaning things, such as run about without clothing, and so on.