platypus, duckbill, duckbilled platypus, duck-billed platypus, Ornithorhynchus anatinus
['mousetrap', 'Komodo dragon, Komodo lizard, dragon lizard, giant lizard, Varanus komodoensis', 'muzzle', 'sidewinder, horned rattlesnake, Crotalus cerastes', 'porcupine, hedgehog', 'hippopotamus, hippo, river horse, Hippopotamus amphibius', 'brown bear, bruin, Ursus arctos']