• 1 College Library
• 1 MERIT Library
• 1 Steenbock Library
• 1 Verona Shelving Facility

• 3 DVDs

• 32 Natural history
• 24 Animals
• 23 Ecology
• 20 Cosmology
• 19 Astronomy
• 16 Physical geography
• 12 Evolution
• 11 Biotic communities
• 11 Climatic changes
• 11 Habitat (Ecology)
• 10 Biodiversity
• 10 Earth sciences
• 9 Historical geology
• 9 Human ecology
• 8 History
• 8 Plate tectonics
• 7 Nature
• 6 Biology
• 6 Effect of human beings on
• 6 Geology
• 6 Weather
• 5 Animal diversity
• 5 Animal ecology
• 5 Evolution (Biology)
• 5 Life

• 28 British Broadcasting Corporation
• 21 Attenborough, David, 1926-
• 20 BBC Worldwide Ltd.
• 19 Independent Communications Associates
• 19 Kennard, David
• 19 Music Video Distributors, Inc.
• 19 Northcutt Productions
• 19 Northcutt, Patsy
• 19 Swimme, Brian
• 19 Tucker, Mary Evelyn
• 19 Yale University. School of Forestry and Environmental Studies
• 15 Discovery Channel (Firm)
• 13 British Broadcasting Corporation. Natural History Unit
• 13 Johnson, Corey, 1961-
• 12 Public Broadcasting Service (U.S.)
• 11 BBC Worldwide Americas, Inc.
• 11 Fothergill, Alastair
• 11 Nihon Hōsō Kyōkai
• 9 BBC America
• 9 France télévision
• 9 Tencent Pictures
• 9 Zweites Deutsches Fernsehen
• 8 Cordey, Huw
• 7 Flight 33 Productions (Firm)
• 6 National Geographic Channel (Television station : Washington, D.C.)

• 94 English

• 19 Universe
• 2 Pacific Area
• 2 Polar regions
• 2 Solar system
• 1 Africa
• 1 Atacama Desert (Chile)
• 1 Chile
• 1 Everest, Mount (China and Nepal)
• 1 Great Lakes (Africa)
• 1 Great Lakes (North America)
• 1 Great Rift Valley
• 1 Himalaya Mountains
• 1 Iceland
• 1 Krakatoa (Indonesia)
• 1 New York
• 1 New York (State)
• 1 San Andreas Fault (Calif.)
• 1 Sun

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