• 6 Behavior
• 5 Animals
• 4 Bears
• 3 Animal behavior
• 3 Brown bear
• 3 Endangered species
• 3 Habitat
• 3 Habitations
• 2 Cats
• 2 Conservation
• 2 Description and travel
• 2 Ecology
• 2 Felidae
• 2 Human-animal relationships
• 2 Natural history
• 2 Sharks
• 2 Wildlife conservation
• 1 Adamson, George, 1906-1989
• 1 Adamson, Joy
• 1 Amphibians
• 1 Animal ecology
• 1 Bald eagle
• 1 Bats
• 1 Bees
• 1 Birds

• 18 WNET (Television station : New York, N.Y.)
• 10 Morgan, Chris, 1968-
• 6 British Broadcasting Corporation
• 6 National Geographic Channel (Television station : Washington, D.C.)
• 4 Coneflower Productions
• 4 Pontecorvo Productions
• 4 Pontecorvo, Joseph
• 4 Prum, Ann
• 3 BBC Studios
• 3 Terra Mater Factual Studio
• 3 WNET.ORG
• 3 Wildlife Media (Firm)
• 2 AGB Films
• 2 Abraham, F. Murray
• 2 Birkhead, Mike
• 2 Brian Leith Productions (Firm)
• 2 Buchanan, Gordon, 1972-
• 2 Giamatti, Paul
• 2 Gooder, Steve
• 2 Gripping Films
• 2 Hess, Janet
• 2 Mamon, Anwar
• 2 Mike Birkhead Associates

• 32 English

• 4 Alaska
• 2 Africa
• 2 Luangwa River Valley (Zambia and Mozambique)
• 1 Admiralty Island (Alaska)
• 1 Antarctic Peninsula
• 1 Antarctica
• 1 Bristol
• 1 Canada
• 1 England
• 1 Hawaii
• 1 Kenya
• 1 Northwest, Pacific
• 1 Panama
• 1 Portugal
• 1 Puerto Rico
• 1 Russia (Federation)
• 1 Russian Far East
• 1 Tongass National Forest (Alaska)
• 1 United States
• 1 Zambia

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