Minnesota State Law Library
The field of law dealing with vertebrates other than humans. The field cuts across many traditional doctrinal areas (e.g., contracts, torts, administrative law) as well as jurisprudence. Topics include wildlife-management law, laws concerning treatment of laboratory animals, and laws relating to companion animals.
Source: Black's Law Dictionary, Tenth Edition.
Most law regarding types and numbers of animals allowed in a residence will be determined at the City level and City Ordinances will be your main source of information.
In our positions as librarians, not lawyers, we can suggest resources but cannot give legal advice (such as which form to file) or legal opinions (such as how a statute might apply to particular facts). To do so could be considered the unauthorized practice of law. Even though we try to suggest materials that will be of help, more research is often required to find a complete and correct answer. For many questions, the best answer may be to consult an attorney.