Oregon Public Broadcasting ; producer, Sean Hutchinson ; Red Door Films ; director, writer, David Poulshock ; producer, Annie Tonsiengsom, Jacqueline Blain
by David Attenborough ; a BBC TV production in association with Australian Broadcasting Corporation, Turner Broadcasting System Inc. ; BBC Bristol ; executive producer, Peter Jones
a BNP Pictures production ; produced by Leslie Manookian, Kendall Nelson, Chris Pilaro ; directed by Kendall Nelson and Chris Pilaro ; written by Leslie Manookian
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