Hamilton, Matt (Matthew Charles), television director.

Brick, Scott, narrator.

PBS Distribution (Firm), publisher.

Terra Mater Factual Studios, production company.

Thirteen Productions, production company.

WNET (Television station : New York, N.Y.), production company.

a production of Terra Mater Factual Studios in association with Thirteen Productions LLC for WNET ; written and directed by Matt Hamilton.

Penker, Otmar, director of photography, editor of moving image work, television director.

Gastgeb, Andrea, television producer

Murphy, Bill (Producer), television producer.

Feichtenberger, Klaus, screenwriter.

Boulter, Russell, narrator.

Terra Mater Factual Studios, production company.

Doclights (Firm), production company.

NDR Naturfilm, production company.

France télévision, production company.

WNET (Television station : New York, N.Y.), production company.

Thirteen Productions, production company.

Public Broadcasting Service (U.S.), publisher.

PBS Distribution (Firm), film distributor.

Public Broadcasting Service (U.S.)

a production of Thirteen Productions LLC, Terra Mater Factual Studios, Doclights/NDR Naturfilm and France Télévisions in association with WNET ; directed, photographed and edited by Otmar Penker ; series producer, Andrea Gastgeb ; narration script, Klaus Feichtenberger ; series producer (for Nature), Bill Murphy.

Murray, John, 1964- film director, film producer.

Baker, Ciara, film producer.

Giblin, Cepa, film producer.

Merediz, Olga, narrator.

Pontillo, Domenico, director of photography

Fitzpatrick, James, editor of moving image work.

Badhands (Musical group), composer.

Crossing the Line Productions, production company.

Thirteen Productions, production company.

WNET (Television station : New York, N.Y.), production company.

ORF-Universum (Firm), production company.

Danmarks radio, production company.

Sveriges television, production company.

Raidió Teilifís Éireann, production company.

British Broadcasting Corporation, production company.

Public Broadcasting Service (U.S.), publisher.

PBS Distribution (Firm), film distributor.

a production of Crossing the Line Productions and Thirteen Productions LLC in association with WNET, ORF-Universum, France Télévisions, DR, SVT, RTÉ, BBC ; director, John Murray ; produced by John Murray, Ciara Baker, Cepa Giblin.

Benson, Will, on-screen presenter, television director, screenwriter.

Geffen, Anthony, television producer.

Atlantic Productions (London, England), production company.

Thirteen Productions, production company.

WNET (Television station : New York, N.Y.), production company.

FremantleMedia, production company.

Public Broadcasting Service (U.S.), publisher.

PBS Distribution (Firm), film distributor.

a production of Atlantic Productions Limited and Thirteen Productions LLC for WNET and Fremantlemedia ; written and directed by Will Benson ; producer, Anthony Geffen.