what is cuttlefish
Cuttlefish are marine animals of the order Sepiida. They belong to the class Cephalopoda, which also includes squid, octopodes, and nautiluses. Cuttlefish have a unique internal shell, the cuttlebone.Despite their name, cuttlefish are not fish but molluscs. Cuttlefish have large, W-shaped pupils, eight arms, and two tentacles furnished with denticulated suckers, with which they secure their prey.uttlefish eat small molluscs, crabs, shrimp, fish, octopodes, worms, and other cuttlefish. Their predators include dolphins, sharks, fish, seals, seabirds, and other cuttlefish.