a Visual Acoustics, LLC/Shulman Project Partners, L.P./Out of the Box Prod. ; written by Eric Bricker, Phil Ethington ; produced by Babette Zilch ; produced and directed by Eric Bricker
written, produced and directed by Linda Garmon ; a Nova production by the WGBH/Boston Science Unit in association with BBC-TV, NDR International Hamburg and Nederlandse Omroepprogramma Stichting
a co-production of Visty/Brennan Productions and Thirteen/WNET in association with the Gorilla Foundation/koko.org ; written & produced by Bonnie Brennan & Robert Visty ; producers, Jill Clarke, Jessica Siegel
a Devine Entertainment program in association with Merlin Films Group and Home Box Office ; created and produced by David Devine and Richard Mozer ; written by Heather Conkie ; directed by Don McBrearty
Aldo Leopold Foundation, U.S. Forest Service, Center for Humans and Nature present ; a film by Ann Dunsky, Steve Dunsky, Dave Steinke ; executive producer, Buddy Huffaker