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Subject
- Social aspects2
- Wildlife conservation2
- Animal behavior1
- Animals1
- Application software1
- Bears1
- Behavior1
- Black bear1
- Captive wild animals1
- Chimpanzees1
- Communication1
- Conservation of natural resources1
- Crust1
- DVD-Video discs1
- Deer1
- Description and travel1
- Documentary films1
- Economic aspects1
- Ecotourism1
- Environmental conditions1