Let me preface with the fact that there is nothing wrong with either type of person. However, a psychologist from the University of Texas says research proves there are differences. Cats rule the world "I'm not a cat person," he said.
The terms dog people and cat people refer to a person's domesticated pet animal preference. Through research completed at University institutions it was found that there were differences in character and behaviour between dog and cat people. It was also found that some people base a significant portion of their identity around their affinity for either cats or dogs. This builds on the perceived dichotomy between cats and dogs as pets in society.