• 13 Animals
• 7 Animal ecology
• 6 Behavior
• 6 Marine animals
• 5 Animal diversity
• 5 Biodiversity
• 5 Climatic changes
• 5 Description and travel
• 5 Discoveries in geography
• 5 Discovery and exploration
• 5 Evolution (Biology)
• 5 Marine ecology
• 5 Natural disasters
• 5 Natural history
• 4 Animal behavior
• 4 Bears
• 4 Habitat
• 3 Brown bear
• 3 Coasts
• 3 Endangered species
• 3 Forests and forestry
• 3 Habitations
• 2 Bald eagle
• 2 Cats
• 2 Conservation

• 32 Thirteen Productions
• 18 WNET (Television station : New York, N.Y.)
• 10 ARTE France
• 10 Morgan, Chris, 1968-
• 6 British Broadcasting Corporation
• 6 National Geographic Channel (Television station : Washington, D.C.)
• 5 Baxley, Hayes
• 5 Berentson, Quinn
• 5 Campbell-Staton, Shane
• 5 Cullum, John
• 5 Discovery Networks Europe
• 5 Kim, Daniel Dae, 1968-
• 5 Love Nature (Firm)
• 5 Meade, Craig
• 5 Natural History New Zealand Ltd.
• 5 Passion Planet (Firm)
• 5 Zweites Deutsches Fernsehen
• 4 BBC Studios
• 4 Coneflower Productions
• 4 Keyte, Charlotte
• 4 Pontecorvo Productions
• 4 Pontecorvo, Joseph
• 4 Prum, Ann
• 3 British Broadcasting Corporation. Natural History Unit

• 49 English

• 5 Earth (Planet)
• 5 Pacific Ocean
• 4 Alaska
• 3 Scandinavia
• 2 Africa
• 2 Kenya
• 2 Luangwa River Valley (Zambia and Mozambique)
• 1 Admiralty Island (Alaska)
• 1 Antarctic Peninsula
• 1 Antarctica
• 1 Austria
• 1 Bristol
• 1 Canada
• 1 England
• 1 Hawaii
• 1 Nationalpark Kalkalpen
• 1 Northwest, Pacific
• 1 Panama
• 1 Polar regions
• 1 Portugal
• 1 Puerto Rico
• 1 Russia (Federation)
• 1 Russian Far East
• 1 Tongass National Forest (Alaska)
• 1 United States

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