Arctic fox, white fox, Alopex lagopus
['cairn, cairn terrier', 'echidna, spiny anteater, anteater', 'collie', 'porcupine, hedgehog', 'platypus, duckbill, duckbilled platypus, duck-billed platypus, Ornithorhynchus anatinus', 'agaric', 'violin, fiddle']