The Humboldt squid, also known as Jumbo Squid is a large, predatory squid living in the waters of the Humboldt Current in the eastern Pacific Ocean. Humboldt squid are among the largest of squids, reaching a mantle length of 4.9 ft. They have a reputation for aggression towards humans, though this behavior may possibly only manifest during feeding times. They possess bioluminescent photophores and are capable of quickly changing body coloration. They notably rapidly flash red and white while hunting, earning them the name diablo rojo which is Spanish for 'red devil among fishermen. They can live for up to two years. They are most commonly found at depths of 200 to 700 m. The squid are lured to the surface to feed on plankton that are usually reflected by light. Fisherman fish at night for this reason because the lights from their boats lure attracted the squids.The Humboldt squid feeds primarily on small fish, crustaceans, cephalopods, and copepods. The squid uses its barbed tentacle suckers to grab its prey. Another method of hunting, is pulling the prey to great depths until it faints. The Humboldt squid is also known to quickly devour larger prey when hunting in groups.