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CONTINENT >
5
FIELD INVESTIGATION
FIELD SURVEYS
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GEOGRAPHIC REGION >
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POLAR
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biota
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BIOLOGICAL CLASSIFICATION
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EARTH SCIENCE
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MAMMALS
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oceans
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AMD
3
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environment
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Antarc*
5
Antarctic
5
Antarctica
Elephant Seal
Elephant Seals
5
Southern Ocean
5
Weddell Seals
walrus*
5
Mirounga leonina
4
Sea ice
4
Southern Elephant Seal
3
Antarctic Krill
2
Elephant Island
2
IPY
2
Macquarie Island
2
Southern Elephant Seals
2
Weddell Seal
2
Emperor penguins
1
Giant Petrels
1
Heard Island
1
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