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 Pioneer Productions for National Geographic Channel ; executive producers, Simon Andreae and Andrea Florence ; directors, Stefanie Kern and Lorne Townend
hosted and narrated by Chris Morgan ; written and produced by Joseph Pontecorvo ; Pontecorvo Productions and Thirteen in association with Wildlife Media, National Geographic Channel and WNET New York Public Media
hosted and narrated by Chris Morgan ; written and produced by Joseph Pontecorvo ; Pontecorvo Productions and Thirteen in association with Wildlife Media, National Geographic Channel and WNET New York Public Media
produced by Thirteen in association with WNET.org and National Geographic Channel ; executive producer, Fred Kaufman ; written and produced by Gianna Savoie
narrated by Jay O. Sanders ; produced by Jim Norton and Rob Whittlesey ; a production of Sea Studios Foundation and Thirteen ; in association with WNET New York Public Media and National Geographic Channel
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 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
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