• 1 Steenbock Library

• 12 Animals
• 6 Animal ecology
• 6 Savanna animals
• 6 Savanna ecology
• 3 Natural history
• 2 Habitat (Ecology)
• 1 Animal behavior
• 1 Biodiversity
• 1 Conservation
• 1 Desert animals
• 1 Desert ecology
• 1 Deserts
• 1 Elephants
• 1 Endangered species
• 1 Giraffe
• 1 Gorilla
• 1 Gorilla gorilla
• 1 Naturay history
• 1 Rain forests

• 7 BBC Worldwide Ltd.
• 6 Downer, John (Television producer and director)
• 6 Fuller, Simon
• 6 John Downer Productions Ltd.
• 6 Nyong'o, Lupita
• 6 Wojiechowski, Rebecca
• 6 XIX Entertainment (Firm)
• 5 Attenborough, David, 1926-
• 5 British Broadcasting Corporation
• 5 France télévision
• 4 BBC Worldwide Americas, Inc.
• 4 Discovery Channel (Firm)
• 2 Pearson, Hugh
• 2 Public Broadcasting Service (U.S.)
• 2 Thirteen Productions
• 1 AGB Films
• 1 BBC America
• 1 Badger, Giles
• 1 Birkhead, Mike
• 1 British Broadcasting Corporation. Natural History Unit
• 1 Christie, Paul (Paul Anthony)
• 1 Fossey, Dian
• 1 Fowler, Jim, 1930-2019
• 1 Gripping Films
• 1 Gros, Peter

• 14 English

• 6 Serengeti National Park (Tanzania)
• 6 Serengeti Plain
• 6 Serengeti Plain (Tanzania)
• 6 Tanzania
• 1 Congo River
• 1 Congo River Valley
• 1 Kalahari Desert
• 1 Sahara

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