Cephalopods (squid, cuttlefish, octopus) are among the most highly advanced of all invertebrate animals. These swift, intelligent predators have well-developed nervous systems complete with relatively large brains and eyes very much like our own.. Cuttlefish communicate with other cuttlefish by their changes in coloration. They are predators eating small molluscs, crabs, shrimp, fish, octopus, worms, and other cuttlefish.
Sepia latimanus, also known as the broadclub cuttlefish, is widely distributed from the Andaman Sea, east to Fiji, and south to northern Australia. It is the most common cuttlefish species on coral reefs, living at a depth of up to 30 m. It is the second largest cuttlefish species growing to 50 cm in mantle length and 10 kg in weight. Tentacles are light brown or yellowish with white mottled markings. The arms have longitudinal white bands that appear as broad white blotches when extended. The eyes are yellow around the ventral margins.