a production of Thirteen and ArgoFilms in association with WNET.org for PBS ; written, produced and directed by Allison Argo ; executive producer, Fred Kaufman ; series producer, Bill Murphy
by David Attenborough ; a BBC TV production in association with Australian Broadcasting Corporation, Turner Broadcasting System Inc. ; BBC Bristol ; executive producer, Peter Jones
A production of The Documentary Guild in association with WGBH Boston for Nova ; WGBH Educational Foundation ; Executive editor, William Grant ; executive producer, Paula S. Apsell ; written, produced and directed by Rob Whittlesey and Noel Buckner
a BBC Studios Natural History Unit production ; a co-production with BBC America, Tencent, WDR, France Televisions and CCTV9 ; a BBC Open University partnership ; executive producer, James Honeyborne ; series producer, Mark Brownlow ; producers, Miles Barton, Orla Doherty, Kathryn Jeffs, Will Ridgeon, John Ruthven, Jonathan Smith
a Nova production co-produced by Pioneer Film and Television Productions Limited with China International TV Corporation with CCTV-10 and PAAN Media Holdings Co. Limited, with KBS Korea in association with PBSd, for WGBH and KBS ; series director, Kate Dart ; senior series producer, Melanie Wallace
a production of Pontecorvo Productions and Thirteen in association with Wildlife Media, National Geographic Channel and WNET New York Public Media ; writer, producer, and director of photography, Joseph Pontecorvo
produced by Primitive Entertainment and Films à Trois in co-production with the National Film Board of Canada ; produced in association with Centre National de la Cinématographie ; directed by Nick de Pencier ; narration written by Elizabeth Arledge ; produced for NOVA by Elizabeth Arldege
a Nova/WGBH, La Cinquième, Südwestrundfunk, Gedéon Programmes, Meridian, and NHK co-production ; produced for Nova by Providence Pictures, Inc. for WGBH/Boston ; written and directed by Liesl Clark
produced by Pioneer Productions for National Geographic Channel ; executive producers, Simon Andreae and Andrea Florence ; directors, Stefanie Kern and Lorne Townend
director, Susan Fleming ; writer, Ted Remerowski ; produced in association with the Canadian Broadcasting Corporation ; in association with ARTE France ... [and others] ; produced by A Murder of Crows Inc
an Essential Media and Entertainment film production for Nova/WGBH in association with Eden ; developed and produced in association with the Australian Broadcasting Corporation ; written, produced, and directed by Richard Smith
produced by Thirteen in association with WNET.org and National Geographic Channel ; executive producer, Fred Kaufman ; written and produced by Gianna Savoie
written and directed by Erna Buffie ; produced by Merit Jensen Carr ; produced in association with the Canadian Broadcasting Corporation ; a Merit Motion Pictures production
produced by Pioneer Productions and Fox Television Studios in association with Channel 4 for National Geographic Television ; produced by Simon Andreae ; written and directed by Yavar Abbas
a production of Moore & Moore Films and Thirteen ; in association with National Geographic Channel and WNET ; produced by Shane Moore, Janet Hess ; written by Janet Hess
written, produced and directed by David de Vries ; produced by Vincent Lopez ; produced by Flight 33 Productions for History Television Network Productions
narration written by Thomas Friedman ; directed by Wolfgang Thaler, Herbert Habersack ; [a co-production by WGBH/Boston, Adi Mayer Film, ORF, BMUK in association with WDR]
a production of Partisan Pictures and Thirteen in association with WNET.org and National Geographic Channel ; written and produced by Doug Shultz ; series producer for Nature, Bill Murphy ; executive producer for Nature, Fred Kaufman
director, Susan Fleming ; writers, Siobhan Flanagan, Gary Lang ; producer, Susan Fleming ; a production of Coy Wolf Inc. in association with Thirteen Productions LLC for WNET
produced by Kevin Bachar ; written by Rob Goldberg ; a Pangolin Pictures and Thirteen production in co-production with Terra Mater Factual Studios in association with WNET
Pontecorvo Productions and Thirteen Productions LLC in association with National Geographic Channel, Sky Vision and WNET ; produced and written by Joe Pontecorvo