I am thinking about getting a guinea pig but don't know much about them. I want to educate myself first. Can anyone recommend a good book? Also, if anyone can answer any of the following questions: I have two cats. How do cats and guinea pigs get along? Is it better to have two piggies so they can keep each other company? Even if you have pigs of the same sex, is it better to get them neutered? What kind of cage is the best for them? Any help anyone can give would be appreciated.