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This category has the following 4 subcategories, out of 4 total.
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154:Natural history of Europe by country
95:Natural history museums in Bulgaria
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149:Natural history by country
119:Paleontology in Bulgaria
144:Environment of Bulgaria
75:Ecoregions of Bulgaria
55:Biota of Bulgaria
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138:Categories
123:(2 C, 2 P)
59:(4 C, 2 P)
99:(5 P)
79:(7 P)
140::
121:
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108:P
88:N
68:E
44:B
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