Response to first part of Maus 2

When I was reading the first part of Maus 2, one question came to my mind, why did Art Spiegelman use Mice for his main characters?  In my opinion, using mice as the characters can easily organize the hierarchy in the concentration camp and in the Holocaust in general.  For example, the guards were cats and the prisoner guards were pigs.  In the context of the Holocaust it makes perfect sense to have cats be the prison guards because in real life they scare mice and frighten them.  In the eyes of mice, cats are their primary enemy.  The use of pigs whom were prisoner guards is useful to show that they had more power than mice, but not a much as cats because they were not predators.  Pigs were a piece of meat which was bigger than the mice and gave them more power and in a sense they were more useful.  Overall, Art Spiegelman's use of characters to create a social and political hierarchy during the Holocaust is very creative by using mice, pigs, and cats.