• 10 Videos, Slides, Films

• 6 DVDs

• 5 Exploration
• 4 Planets
• 4 Research
• 3 Meteorology
• 3 Tornadoes
• 2 Storm chasers
• 1 Adaptation (Biology)
• 1 Amphibians
• 1 Animal diversity
• 1 Animal migration
• 1 Animals
• 1 Aquatic ecology
• 1 Astronomy
• 1 Atmosphere
• 1 Biodiversity
• 1 Biotic communities
• 1 Birds
• 1 Coasts
• 1 Deep-sea animals
• 1 Desert ecology
• 1 Elephants
• 1 Fishes
• 1 Floods
• 1 Forest ecology
• 1 Freshwater ecology

• 5 British Broadcasting Corporation
• 4 BBC Worldwide Ltd.
• 4 Cox, Brian, 1968-
• 4 Discovery Channel (Firm)
• 4 Fortune, Jack
• 4 Tongue, Sheridan
• 3 Casey, Sean (Sean C.)
• 2 Discovery Communications, Inc
• 2 Gaiam Americas, Inc
• 2 Krensel, Ronnie
• 2 Lachmann, Michael (Television producer)
• 2 Original Media
• 2 Tornado Alley LLC
• 2 Wurman, Joshua
• 1 Allan, Douglas
• 1 Ashcroft, Nigel
• 1 Aslett, Will
• 1 Attenborough, David, 1926-
• 1 Bass, Karen
• 1 Beesley, Bradley
• 1 Berg, Julianne
• 1 Block, Lisa J.
• 1 Brosnan, Pierce
• 1 Carpenter, Nathan
• 1 Carroll, Michael (Narrator)

• 10 English

• 4 Great Plains
• 4 Outer space
• 4 Solar system
• 3 Mars (Planet)
• 2 Middle West
• 2 Saturn (Planet)
• 2 United States
• 1 Alaska
• 1 Arctic regions
• 1 Botswana
• 1 British Columbia
• 1 China
• 1 Earth (Planet)
• 1 Europa (Satellite)
• 1 Hong Kong
• 1 Jupiter (Planet)
• 1 Kalahari Desert
• 1 Okavango River Delta
• 1 Olympus Mons (Mars)
• 1 Polar regions
• 1 Serengeti Plain
• 1 South Africa
• 1 Tanzania
• 1 Titan (Satellite)
• 1 Tropics

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