with host Richard Jackson ; executive producers & directors, Harry Wiland & Dale Bell ; producer, writer, editor, Beverly Baroff ; Media & Policy Center Foundation
director, Elise Swerhone ; written by Robert Lower ; producers, Merit Jensen Carr, Sandra Moore ; a Merit Motion Pictures production ; produced in association with Canadian Broadcasting Corporation ; produced in association with National Geographic Channel, and with the participation of Discovery Science
Bullfrog Films presents ; with host and narrator Jimmy Smits ; producers, Harry Wiland, Dale Bell ; director, Harry Wiland ; writer/producer/editor, Beverly Baroff ; a Media & Policy Center Foundation production in association with Oregon Public Broadcasting