by Paul Devlin ; directed, edited, and produced by Paul Devlin ; produced by Claire Missanelli ; a Paul Devlin production in association with BBC, YLE/FST Finland, Discovery Channel Canada, SVT/Sweden
a presentation of Science Museum of Minnesota, Science North and Discovery Place in cooperation with the Jane Goodall Institute with funding from Bank of America and National Science Foundation ; producer, David Lickley ; writer, Stephen Low ; director, David Lickley
a presentation of the Howard Hughes Medical Institute ; produced by Sutherland Media Productions, Inc ; producer, Dennis WC. Liu, Ann DeStefano Sutherland ; director, Wally Ashby
a film by Maria Finitzo ; executive producer, Gordon Quinn ; produced in association with The British Broadcasting Corporation, The Canadian Broadcasting Corporation, SBS-TV Australia ; produced by Kartemquin Educational Films, Inc
a Triumph Documentaries production ; produced and directed by Barbara-Langsam Shuman, Sharon Harris Pollack, Jill Mirowitz Mogil ; writer: Barbara Langsam Shuman
produced by Bill Jersey & Michael Schwarz ; writers, Alex Beckstead, Jason Cohn, Bill Jersey, Max Salomon, Michael Schwarz ; Catticus Corporation ; Quest Productions ; Kikim Media ; KQED presentation
Oxford University, Victoria University of Wellington, The Science Documentary Project present ; a David Sington/Simon Lamb film ; a DOX production, co-produced by Catherine Fitzgerald ; directed by Simon Lamb & David Sington
produced and directed by Judith Dwan Hallet, a Judith Dwan Hallet Production ; written by Michael Olmert, Judy Hallet ; cinematography/co-director, Reuben Aaronson ; produced by Hearst Entertainment, Inc. and Tele Images in association with the Arts & Entertainment Networks
presented by Thirteen for WNET.ORG ; Distributed by American Public Television ; A ParnassusWorks Film ; produced and directed by Richard Rifkind, Carole Rifkind