hippopotamus, hippo, river horse, Hippopotamus amphibius
['American black bear, black bear, Ursus americanus, Euarctos americanus', 'African grey, African gray, Psittacus erithacus', 'French horn, horn', 'sea cucumber, holothurian', 'crane2', 'koala, koala bear, kangaroo bear, native bear, Phascolarctos cinereus', 'bustard']