The corporate authorities of any municipality having a population of less than 1,000,000 or the corporate authorities, acting jointly, of any combination of municipalities each having a population of less than 1,000,000, may by resolution or ordinance provide for the formation of a Municipal Zoo Authority with the powers, duties, responsibilities and privileges provided in this Division.
     The Authority may sue and be sued in its corporate name, but execution shall not in any case issue against any property of the Authority. It may adopt a common seal and change the same at pleasure. The Authority may adopt a corporate name, which shall end with “Zoo Authority”, and change the same at pleasure. The principal office of the Authority shall be within the metropolitan area.