• 3 Steenbock Library
• 1 College Library
• 1 MERIT Library
• 1 Wisconsin's Water Library

• 3 Animals
• 1 Adaptation
• 1 Aggressive behavior in animals
• 1 Animal behavior
• 1 Animal burrowing
• 1 Animal communication
• 1 Animal defenses
• 1 Behavior
• 1 Biotic communities
• 1 Climatic changes
• 1 Competition (Biology)
• 1 Desert ecology
• 1 Environmental economics
• 1 Familial behavior in animals
• 1 Food
• 1 Global warming
• 1 Greenhouse effect, Atmospheric
• 1 Habitat (Ecology)
• 1 Habitations
• 1 Lemurs
• 1 Mammals
• 1 Marine animals
• 1 Marine ecology
• 1 Natural history
• 1 Nest building

• 4 British Broadcasting Corporation
• 3 Warner Home Video (Firm)
• 2 2 Entertain (Firm)
• 2 BBC Earth (Firm)
• 2 BBC Worldwide Americas, Inc
• 1 2 Entertain Video (Firm)
• 1 Animal Planet (Television network)
• 1 Australian Broadcasting Corporation
• 1 BBC America
• 1 BBC Bristol (Firm)
• 1 BBC Video (Firm)
• 1 BBC Worldwide Ltd
• 1 Bristow, Jeremy
• 1 British Broadcasting Corporation. Natural History Unit
• 1 British Broadcasting Corporation. Television Service
• 1 Brown, Nicolas
• 1 Brownlow, Mark
• 1 Discovery Channel (Firm)
• 1 Doherty, Orla
• 1 Fenton, George
• 1 Fothergill, Alastair
• 1 France télévision
• 1 Gray, Ian
• 1 Griffiths, Alex

• 1 Cold regions
• 1 Eastern Hemisphere
• 1 Madagascar
• 1 Northern Hemisphere
• 1 Southern Hemisphere
• 1 Tropics
• 1 Western Hemisphere

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