NZP Diving Class in Old Polar Bear Pool, by Cohen, Jessie, 1987, Smithsonian Archives - History Div, A diving class held in the old polar bear pool at the National Zoological Park. In attendance is keeper Tom Munte, pathologist Richard Montali, Smithsonian diving instructor Joe Libbey, keeper Ed Smith, veterinarian Mitchell Bush, invertebrate exhibit coordinator Jaren Horsley, keeper Alan Peters and veterinarian Lyndsay Phillips..