hippopotamus, hippo, river horse, Hippopotamus amphibius
['bathing cap, swimming cap', 'titi, titi monkey', 'koala, koala bear, kangaroo bear, native bear, Phascolarctos cinereus', 'African grey, African gray, Psittacus erithacus', 'hognose snake, puff adder, sand viper', 'common newt, Triturus vulgaris', 'Newfoundland, Newfoundland dog']