Simple categories matching arctic:

• activity,
• animal,
• ruminant,
• system,
• explorer,
• whale,
• herbivore,
• fauna,
• carnivore,
• bird,
• food,
• species,
• mammal,
• critter,
• predator,
• game,
• creature,

Members with property arctic:

• narwhale,
• beluga_whale,
• beluga,
• Fridtjof_Nansen,
• reindeer,
• tandem_skiing,
• puffin,
• whale,
• musk_oxen,
• hare,
• caribou,
• sanderling_calidris,
• small_mammal,
• seal,
• rumex,
• grey_plover,
• rabbit,
• lynx,
• narwhal,
• snowy_owl,
• wolverine_glutton,
• walrus,
• seabird,
• rhinoceros,
• atmosphere,
• purple-saxifrage_saxifraga,
• moose,
• bowhead,
• elusive_lynx,
• knot,
• bird,
• ptarmigan,
• hamster,
• pipit,
• lemming,
• gyrfalcon,
• woolly_rhinoceros,
• reindeer_ride,
• grizzly,
• canada_goose,
• penguin,
• tufted_puffin,
• whale_meat,
• variety,
• fox,
• brent_goose,
• goose,
• wolverine,
• mammoth,
• wild_horse,
• peary_caribou,
• cyperaceae,
• wild_reindeer,
• snowmobile_safari,
• snow_goose,
• dotterel,
• white_wolf,
• land,
• weasel,
• cod,
• glutton,
• murre,
• squid,
• wolf,
• harp-seal_puppet,
• guillemot,
• ermine,
• poaceae,
• owl,
• elk,
• ptarmigan_lagopus,
• white_whale,