The Humboldt squid (Dosidicus gigas), also known as jumbo squid or jumbo flying squid, is a large, predatory squid living in the eastern Pacific Ocean. It is the only known species of the genus Dosidicus of the subfamily Ommastrephinae, family Ommastrephidae.
Humboldt squid typically reach a mantle length of 1.5 m (5 ft), making the species the largest member of its family. They are the most important squid worldwide for commercial fisheries, with the catch predominantly landed in Chile, Peru and Mexico; however, a 2015 warming waters fishery collapse in the Gulf of California remains unrecovered. Like other members of the subfamily Ommastrephinae, they possess chromatophores which enable them to quickly change body coloration, known as 'metachrosis' which is the rapid flash of their skin from red to white. They have a relatively short lifespan of just 1–2 years. They have a reputation for aggression toward humans, although this behavior may only occur during feeding times.