• 1 College Library

• 1 DVDs

• 3 Biotic communities
• 3 Natural history
• 3 Nature conservation
• 2 Biodiversity
• 2 Human beings
• 2 Indians of North America
• 1 American bison
• 1 Climatic changes
• 1 Earth sciences
• 1 Ecology
• 1 Effect of climate on
• 1 Effect of environment on
• 1 Endangered ecosystems
• 1 Endangered species
• 1 Extinction (Biology)
• 1 Extreme environments
• 1 Habitat (Ecology)
• 1 History
• 1 Human geography
• 1 Prairie ecology
• 1 Swamp ecology
• 1 Weather
• 1 Whales
• 1 Wolves

• 4 Leith, Brian
• 4 Public Broadcasting Service (U.S.)
• 3 BBC Worldwide Ltd.
• 3 Brian Leith Productions (Firm)
• 3 British Broadcasting Corporation
• 3 Thurman, Uma
• 2 Attenborough, David, 1926-
• 2 Ereira, Alan
• 2 WNET (Television station : New York, N.Y.)
• 1 2 Entertain (Firm)
• 1 BBC Bristol (Firm)
• 1 BBC Cymru Wales
• 1 BBC Earth (Firm)
• 1 BBC National Orchestra of Wales
• 1 BBC Studios
• 1 Brown, Nicolas Roether
• 1 Cordey, Huw
• 1 Discovery Channel (Firm)
• 1 Flowers, Mark
• 1 France télévision
• 1 Hugh-Jones, Tom
• 1 Hurt, John, 1940-2017
• 1 Kelly, Ned
• 1 Lathane, Charlotte
• 1 Lown, Peter

• 8 English

• 2 North America
• 1 Earth (Planet)
• 1 Florida
• 1 Great Plains

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