hippopotamus, hippo, river horse, Hippopotamus amphibius
['Newfoundland, Newfoundland dog', 'gorilla, Gorilla gorilla', 'American black bear, black bear, Ursus americanus, Euarctos americanus', 'mink', 'pelican', 'porcupine, hedgehog', 'echidna, spiny anteater, anteater']