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Subject
- Mammals[remove]40
- Birds36
- Biology--Fieldwork21
- Scientific expeditions19
- Voyages and travels15
- Zoological surveys12
- Animal diversity7
- Zoological specimens7
- Animals--Identification6
- Islands5
- Animal populations3
- Bird populations3
- Mammal populations3
- Mountains3
- Deer2
- Fishes2
- Mountain animals2
- Mountain ecology2
- Research vessels2
- Zoology2