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CONTINENT >
GEOGRAPHIC REGION >
8
POLAR
8
SEALS/SEA LIONS/WALRUSES
8
biota
8
oceans
8
ANIMALS/VERTEBRATES
6
ANTARCTICA
6
BIOLOGICAL CLASSIFICATION
6
BIOSPHERE
6
CARNIVORES
6
EARTH SCIENCE
6
ECOLOGICAL DYNAMICS
6
MAMMALS
6
AMD
5
AMD/AU
5
CEOS
5
FIELD INVESTIGATION
5
FIELD SURVEYS
5
OCEAN >
5
SATELLITES
5
SOUTHERN OCEAN
5
SPECIES PREDATION
5
BIOSPHERE >
4
CRYOSPHERE
4
EARTH SCIENCE >
4
SEA ICE
4
SPECIES/POPULATION INTERACTIONS
4
ALBATROSSES/PETRELS AND ALLIES
3
AQUATIC ECOSYSTEMS
3
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Antarc*
8
Antarctic
8
Antarctica
8
Elephant Seals
8
Mirounga leonina
Sea ice
Southern Ocean
Weddell Seals
8
walrus*
8
Elephant Seal
6
Southern Elephant Seals
6
Weddell Seal
5
Southern Elephant Seal
4
Antarctic Fur Seals
3
Aptenodytes forsteri
3
Arctocephalus gazella
3
East Antarctica
3
Pygoscelis adeliae
3
Adelie penguin
2
Antarctic Fur Seal
2
Antarctic Krill
2
Elephant Island
2
IPY
2
Macquarie Island
2
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