• 27 Videos, Slides, Films

• 13 Description and travel
• 6 Animals
• 6 Outdoor life
• 6 Outdoor recreation
• 5 Effect of human beings on
• 5 Nature
• 4 Earth sciences
• 4 Evolution (Biology)
• 4 Forests and forestry
• 4 Human ecology
• 4 Landscapes
• 4 Life
• 4 Paleobiology
• 3 Coasts
• 2 Ecology
• 2 Wildlife conservation
• 1 Chemical elements
• 1 Cold
• 1 Color
• 1 Discovery and exploration
• 1 Endangered species
• 1 Leatherback turtle
• 1 Manatees
• 1 Motion

• 8 British Broadcasting Corporation
• 7 British Broadcasting Corporation. Natural History Unit
• 6 Casey, David (Television director)
• 6 Part2 Pictures
• 6 Thurston, Baratunde
• 4 BBC Studios
• 4 Films Media Group
• 4 Films for the Humanities & Sciences (Firm)
• 4 France télévision
• 4 Johnson, Corey, 1961-
• 4 Open University
• 4 Tencent Penguin Pictures
• 3 Ferguson, Rebecca, 1983-
• 3 Thirteen Productions
• 2 Cooter, Stephen
• 2 Dyas, Matthew
• 2 Revill, Barny
• 2 Rosenthal, Rick, 1949-
• 2 Wild Logic Film (Firm)
• 2 Zavala, Valerie
• 1 Anderson, Justin
• 1 Ark Media (Firm)
• 1 Durrenberger, Yvette
• 1 Faber, Elisabeth

• 27 English

• 4 Australia
• 4 Earth (Planet)
• 3 California
• 3 Scandinavia
• 1 Amazon River Region
• 1 Amazon River Valley
• 1 Arkansas
• 1 Brazil
• 1 Florida
• 1 Maine
• 1 New Mexico
• 1 Oregon
• 1 Portugal
• 1 Puerto Rico
• 1 Roosevelt River (Brazil)
• 1 Suwannee River (Fla.)
• 1 Utah
• 1 Yosemite National Park
• 1 Yosemite National Park (Calif.)

• 23 Documentary television programs
• 7 Nonfiction television programs
• 6 Travelogues (Television programs)
• 5 Nature television programs
• 5 Wildlife television programs
• 4 Educational films
• 4 Internet videos
• 4 Science television programs
• 4 Video recordings for the hearing impaired
• 4 Videorecording
• 1 Biographical television programs

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