Based in Chicago, the ZPP is a unique collaboration between the University of Illinois College of Veterinary Medicine and a number of private and public entities, including Brookfield Zoo, Lincoln Park Zoo, and Shedd Aquarium. Externs conduct gross necropsies and microscopic evaluation of diagnostic cases in conjunction with residents and staff pathologists. Background reading and research for diagnostic cases is expected of externs as is participation in weekly gross and histopathology seminars. A small retrospective project is completed during the externship using archived materials. Daily schedules are determined by the current day’s caseload. Whenever possible, participation in necropsies is the priority. Teaching sets of classic non-domestic animal gross and histologic lesions are available for study as are copies of important published papers and literature. The ZPP has a full library of reference texts and archives of case material that are available for individual study if interest and time permit.