• 6 Videos, Slides, Films

• 2 DVDs

• 6 Animals
• 4 Natural history
• 3 Animal migration
• 3 Floods
• 2 Biotic communities
• 2 Habitat (Ecology)
• 2 Polar bear
• 2 Salmon
• 2 Sardines
• 2 Whales
• 1 Adaptation (Biology)
• 1 Amphibians
• 1 Animal diversity
• 1 Animal ecology
• 1 Aquatic ecology
• 1 Biodiversity
• 1 Birds
• 1 Coasts
• 1 Deep-sea animals
• 1 Desert ecology
• 1 Elephants
• 1 Fishes
• 1 Forest ecology
• 1 Freshwater ecology
• 1 Insects

• 3 Abraham, F. Murray
• 3 Attenborough, David, 1926-
• 3 Bass, Karen
• 3 British Broadcasting Corporation
• 3 Discovery Channel (Firm)
• 3 Doclights (Firm)
• 3 Joubert, Beverly
• 3 Joubert, Dereck
• 3 NDR Naturfilm
• 3 Terra Mater Factual Studios
• 3 Thirteen Productions
• 3 Wildlife Films (Firm)
• 2 BBC Earth (Firm)
• 2 Wanda Distribución de Films
• 1 Allan, Douglas
• 1 Anderson, Justin
• 1 BBC Worldwide Americas, Inc
• 1 BBC Worldwide Americas, Inc.
• 1 Bassett, Peter
• 1 Bassett, Peter (Documentary television producer)
• 1 Brosnan, Pierce
• 1 DeGruy, Michael, 1951-2012
• 1 Fothergill, Alastair
• 1 Holmes, Martha, 1961-
• 1 Pearson, Hugh

• 6 English

• 6 Botswana
• 4 Okavango River Delta (Botswana)
• 3 Okavango River
• 2 Alaska
• 2 Arctic regions
• 2 British Columbia
• 2 Serengeti Plain
• 2 South Africa
• 2 Tanzania
• 1 Earth (Planet)
• 1 Great Plains
• 1 Kalahari Desert
• 1 Polar regions
• 1 Tropics

• 6 Wildlife television programs
• 3 Nonfiction television programs
• 2 Video recordings for the hearing impaired
• 1 Educational television programs
• 1 Observations
• 1 Science television programs
• 1 Television series

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