swordfish: large toothless marine food fish with a long swordlike upper jaw; not completely cold-blooded i.e. they are able to warm their brains and eyes: worldwide in warm waters but feed on cold ocean floor coming to surface at night
scombroid: important marine food and game fishes found in all tropical and temperate seas; some are at least partially endothermic and can thrive in colder waters
polyborus: a genus of Falconidae