A co-production of David E. Simpson ; Kartemquin Educational Films ; the Independent Television Service (ITVS) ; executive producer, Gordon Quinn ; executive producer for ITVS, Sally Jo Fifer ; original concept, Jeannie R. Magill ; directed, produced, written and edited by David E. Simpson
director, Gillian Darling Kovanic ; narration written by Amanda McConnell and Bruce Martin ; produced by Tamarin Productions Inc. in association with the Discovery Channel, USA ... [and others]