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CONTINENT >
6
GEOGRAPHIC REGION >
6
POLAR
6
SEALS/SEA LIONS/WALRUSES
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biota
6
oceans
6
ANIMALS/VERTEBRATES
5
BIOLOGICAL CLASSIFICATION
5
BIOSPHERE
5
CARNIVORES
5
EARTH SCIENCE
5
ECOLOGICAL DYNAMICS
5
MAMMALS
5
AMD
4
AMD/AU
4
ANTARCTICA
4
CEOS
4
CRYOSPHERE
4
FIELD INVESTIGATION
4
FIELD SURVEYS
4
OCEAN >
4
SATELLITES
4
SEA ICE
4
SOUTHERN OCEAN
4
SPECIES PREDATION
4
SPECIES/POPULATION INTERACTIONS
4
ALBATROSSES/PETRELS AND ALLIES
2
ANTARCTICA >
2
AQUATIC ECOSYSTEMS
2
ARGOS >
2
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Antarc*
6
Antarctic
6
Antarctica
6
Elephant Seal
Elephant Seals
Mirounga leonina
6
Sea ice
Southern Ocean
Weddell Seals
walrus*
6
Southern Elephant Seal
4
Southern Elephant Seals
4
Weddell Seal
4
Adelie penguin
2
Antarctic Fur Seal
2
Antarctic Fur Seals
2
Antarctic Krill
2
Aptenodytes forsteri
2
Arctocephalus gazella
2
East Antarctica
2
Elephant Island
2
IPY
2
Macquarie Island
2
Pygoscelis adeliae
2
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