• 1 MERIT Library
• 1 Steenbock Library
• 1 Wisconsin's Water Library

• 45 Videos, Slides, Films

• 8 DVDs

• 39 Natural history
• 29 Animals
• 26 Ecology
• 22 Physical geography
• 13 Biotic communities
• 13 Habitat (Ecology)
• 6 Biodiversity
• 6 Earth sciences
• 5 Desert ecology
• 5 Marine ecology
• 5 Motion picture authorship
• 5 Plate tectonics
• 5 Weather
• 4 Continental drift
• 4 Deserts
• 4 Forests and forestry
• 4 Grasslands
• 4 Historical geology
• 4 History
• 4 Jungles
• 4 Marine animals
• 4 Ocean
• 3 Climatic changes
• 3 Forest ecology
• 3 Volcanoes

• 33 Attenborough, David, 1926-
• 24 British Broadcasting Corporation
• 24 Discovery Channel (Firm)
• 24 Fothergill, Alastair
• 22 BBC Worldwide Americas, Inc.
• 22 Nihon Hōsō Kyōkai
• 15 BBC Worldwide Ltd.
• 11 Alexander Street Press
• 11 Cordey, Huw
• 9 BBC America
• 9 British Broadcasting Corporation. Natural History Unit
• 9 France télévision
• 9 Tencent Pictures
• 9 Zweites Deutsches Fernsehen
• 5 Silverback Films (Firm)
• 4 Berlowitz, Vanessa
• 4 Brownlow, Mark
• 4 Charles, Ed
• 4 Linfield, Mark
• 4 New Video Group
• 4 Pioneer Productions
• 3 Arts and Entertainment Network
• 2 Allen, Penny, Dr
• 2 Byatt, Andrew
• 2 Chin, Peter

• 45 English

• 3 Everest, Mount (China and Nepal)
• 3 Polar regions
• 2 Himalaya Mountains
• 2 Pacific Area
• 1 Alaska
• 1 Alps
• 1 Arctic regions
• 1 Atacama Desert (Chile)
• 1 Botswana
• 1 British Columbia
• 1 Death Valley (Calif. and Nev.)
• 1 Grand Canyon (Ariz.)
• 1 Great Lakes (North America)
• 1 Great Plains
• 1 Great Rift Valley
• 1 Hawaii
• 1 Iceland
• 1 Kalahari Desert
• 1 Krakatoa (Indonesia)
• 1 Ness, Loch (Scotland)
• 1 New York (N.Y.)
• 1 North America
• 1 Okavango River Delta
• 1 Rocky Mountains

• 44 Documentary television programs
• 42 Science television programs
• 21 Nonfiction television programs
• 11 Internet videos
• 7 Video recordings for the hearing impaired
• 5 Television programs
• 2 Educational television programs
• 2 Television series
• 1 DVD-Video discs
• 1 Documentary films
• 1 Observations
• 1 Television mini-series
• 1 Wildlife television programs

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