• 2 DVDs

• 4 Animals
• 3 Biotic communities
• 3 Habitat (Ecology)
• 2 Natural history
• 2 Physical geography
• 1 Adaptation (Biology)
• 1 Amphibians
• 1 Animal diversity
• 1 Animal migration
• 1 Aquatic ecology
• 1 Biodiversity
• 1 Birds
• 1 Coasts
• 1 Deep-sea animals
• 1 Deserts
• 1 Ecology
• 1 Elephants
• 1 Fishes
• 1 Floods
• 1 Forest ecology
• 1 Freshwater ecology
• 1 Insects
• 1 Jungle ecology
• 1 Life (Biology)

• 4 British Broadcasting Corporation
• 4 Discovery Channel (Firm)
• 3 Attenborough, David, 1926-
• 3 Nihon Hōsō Kyōkai
• 2 Cordey, Huw
• 2 Weaver, Sigourney, 1949-
• 1 Allan, Douglas
• 1 Allen, Penny
• 1 BBC Worldwide Americas, Inc
• 1 BBC Worldwide Americas, Inc.
• 1 Bass, Karen
• 1 Berlowitz, Vanessa
• 1 Brosnan, Pierce
• 1 Brownlow, Mark
• 1 Byatt, Andrew
• 1 Canadian Broadcasting Corporation
• 1 DeGruy, Michael, 1951-2012
• 1 Discovery Communications, Inc
• 1 Discovery Education (Firm)
• 1 Fenton, George
• 1 Holmes, Martha, 1961-
• 1 Keeling, Jonny
• 1 Linfield, Mark
• 1 Rosenthal, Rick

• 4 English

• 3 Earth (Planet)
• 3 Tropics
• 2 Cold regions
• 2 Eastern Hemisphere
• 2 Northern Hemisphere
• 2 Southern Hemisphere
• 2 Western Hemisphere
• 1 Alaska
• 1 Arctic regions
• 1 Botswana
• 1 British Columbia
• 1 Great Plains
• 1 Kalahari Desert
• 1 Okavango River Delta
• 1 Polar regions
• 1 Serengeti Plain
• 1 South Africa
• 1 Tanzania

• 4 Documentary television programs
• 3 Science television programs
• 2 Nature television programs
• 2 Video recordings for the hearing impaired
• 1 Documentary
• 1 Educational television programs
• 1 Observations
• 1 Television mini-series
• 1 Television programs
• 1 Television special
• 1 Wildlife television programs

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