hippopotamus, hippo, river horse, Hippopotamus amphibius
['sidewinder, horned rattlesnake, Crotalus cerastes', 'howler monkey, howler', "plunger, plumber's helper", 'spoonbill', 'three-toed sloth, ai, Bradypus tridactylus', 'hook, claw', 'promontory, headland, head, foreland']