hippopotamus, hippo, river horse, Hippopotamus amphibius
['little blue heron, Egretta caerulea', 'seashore, coast, seacoast, sea-coast', 'hip, rose hip, rosehip', 'barracouta, snoek', 'coral reef', 'hognose snake, puff adder, sand viper', 'black swan, Cygnus atratus']