Arctic fox, white fox, Alopex lagopus
['tiger, Panthera tigris', 'basenji', 'nematode, nematode worm, roundworm', 'worm fence, snake fence, snake-rail fence, Virginia fence', 'echidna, spiny anteater, anteater', 'muzzle', 'American black bear, black bear, Ursus americanus, Euarctos americanus']