a co-production of Tigress Productions Limited and Thirteen/WNET New York in association with British Broadcasting Corporation ; producer, Linda Bell ; director, David Allen
directed by Richard Rothschild Pearson, Dominic Ozanne ; produced by Richard Rothschild Pearson, Dominic Ozanne, Open University, British Broadcasting Corporation
BBC Earth ; narrated by David Attenborough ; producer, Miles Barton ; series producer, Rupert Barrington ; a BBC/Discovery Channel/France Televisions/Open University co-production
narrated by David Attenborough ; producer, Dan Rees ; a BBC/Discovery/Antena 3 Television S.A./ZDF/Open University/Skai co-production in association with Discovery Canada
a Blakeway Production for the BBC and WGBH Boston ; produced by Chris Oxley & Malcolm Neum ; directed by Chis Oxley ; produced for NOVA by Joseph McMaster ; narration written by Joseph McMaster