hippopotamus, hippo, river horse, Hippopotamus amphibius
['Mexican hairless', 'sea snake', 'killer whale, killer, orca, grampus, sea wolf, Orcinus orca', 'horned viper, cerastes, sand viper, horned asp, Cerastes cornutus', 'bison', 'crayfish, crawfish, crawdad, crawdaddy', 'pineapple, ananas']