Cuttlefish eat small molluscs, crabs, shrimp, fish, octopus, worms, and other cuttlefish. Cephalopods include octopus, squid and cuttlefish. Cephalopod include octopus, squid and cuttlefish. Cuttlefish sometimes use their color patterns to signal future intent to other cuttlefish. These penguins feed on krill, squid, octopus, lantern fish, mollusks, plankton, cuttlefish, and mainly crustaceans. Mollusks eaten in Korean cuisine include octopus, cuttlefish, and squid. Crustaceans, squid and cuttlefish are also eaten. Octopuses, squids and cuttlefish belong to the clade Coleoidea. Occasionally it eats squid and cuttlefish. In Japanese waters, they are known to eat fish, shrimp, squid, cuttlefish and octopuses. Various species such as conger, lobster, sea urchin, octopus and cuttlefish are illustrated. Polarization sensitivity has also been observed in species of octopus, squid, cuttlefish, and mantis shrimp. Its diet normally consists of fin and ray fish, squids, cuttlefish and occasionally carrion. They also eat shrimps, squid, mollusks, and cuttlefish, and only swallow the soft parts. There is also an incorporation of seafood (like prawns, cuttlefish, squid, lobster meat).