hippopotamus, hippo, river horse, Hippopotamus amphibius
['breakwater, groin, groyne, mole, bulwark, seawall, jetty', 'chambered nautilus, pearly nautilus, nautilus', 'king penguin, Aptenodytes patagonica', 'mink', 'spoonbill', 'wild boar, boar, Sus scrofa', 'hermit crab']