• 48 Videos, Slides, Films

• 26 History
• 26 Plate tectonics
• 21 Physical geography
• 14 Biodiversity
• 12 Internal structure
• 9 Evolution (Biology)
• 9 Geology
• 8 Genetics
• 8 Heredity, Human
• 8 Human evolution
• 8 Physical anthropology
• 7 Geomorphology
• 6 Volcanoes
• 5 Animal diversity
• 5 Phylogeny
• 4 Geography
• 4 Plant diversity
• 4 Plants
• 4 Reproduction
• 3 Evolution
• 3 Origin
• 2 Climatology
• 2 Darwin, Charles, 1809-1882
• 2 Dinosaurs

• 48 Films Media Group
• 48 Films for the Humanities & Sciences (Firm)
• 5 BBC Worldwide Ltd
• 4 Europe Images International
• 4 FremantleMedia
• 4 Infobase
• 3 Granada Media (Firm)
• 1 10 Francs (Firm)
• 1 Allegro Productions (Firm)
• 1 Electric Sky (Firm)
• 1 Filmoption International (Firm)
• 1 Java (Firm)
• 1 National Geographic Television & Film
• 1 Paper Tiger Television Collective (Firm)
• 1 Point du Jour (Firm)
• 1 Smiley Film Distribution & World Sales (Firm)
• 1 Spiegel TV Magazin
• 1 Video Education Australasia

• 48 English

• 13 Earth (Planet)
• 2 Asia
• 2 Europe
• 2 Himalaya Mountains
• 2 Solar system
• 1 Arizona
• 1 Atacama Desert
• 1 Atacama Desert (Chile)
• 1 Australia
• 1 California
• 1 Canada
• 1 Chile
• 1 China
• 1 Death Valley (Calif. and Nev.)
• 1 Germany
• 1 Grand Canyon (Ariz.)
• 1 Hawaii
• 1 Iceland
• 1 Indian Ocean Region
• 1 Indonesia
• 1 Italy
• 1 Krakatoa
• 1 Krakatoa (Indonesia)
• 1 Ness, Loch
• 1 Ness, Loch (Scotland)

• 48 Educational films
• 48 Internet videos
• 25 Video recordings for the hearing impaired

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