• 2 Videos, Slides, Films

• 1 DVDs

• 1 Adaptation (Biology)
• 1 Agriculture
• 1 Americans
• 1 Amphibians
• 1 Animal diversity
• 1 Animal migration
• 1 Aquatic ecology
• 1 Biodiversity
• 1 Biology
• 1 Biotic communities
• 1 Birds
• 1 Coasts
• 1 Deep-sea animals
• 1 Desert ecology
• 1 Documentary films
• 1 Ecology
• 1 Elephants
• 1 Environmental sciences
• 1 Fishes
• 1 Floods
• 1 Foreign study
• 1 Forest ecology
• 1 Freshwater ecology
• 1 Habitat (Ecology)

• 1 Allan, Douglas
• 1 Attenborough, David, 1926-
• 1 Bass, Karen
• 1 British Broadcasting Corporation
• 1 Brosnan, Pierce
• 1 DeGruy, Michael, 1951-2012
• 1 Discovery Channel (Firm)
• 1 Fothergill, Alastair
• 1 Holmes, Martha, 1961-
• 1 Kanopy (Firm)
• 1 PBS (Firm)
• 1 Weaver, Sigourney, 1949-
• 1 Wilburn, Jeff
• 1 Winfrey, Oprah
• 1 Zavala, Valerie

• 2 English

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

• 1 Documentary films
• 1 Documentary television programs
• 1 Educational television programs
• 1 Nature television programs
• 1 Observations
• 1 Science television programs
• 1 Video recordings for the hearing impaired
• 1 Wildlife television programs

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