Taxonomy [Decapodiformes] [Phylum: Mollusca] [Class: Cephalopoda] [Family: Sepiida]
Cuttlefish, squid and octopuses are Cephalopoda marine animals.
The 'cuttle' refers to its internal cuttlebone shell because in fact despite their misleading name they are not fish.
Their size averages twenty centimeters of mantle length and their pupils are curiously shaped like the letter 'W'.
They have 8 arms with 2 tentacles and their brain is enormous when compared to their body size.
Recent reviews by scientists suggest that they are among the most intelligent of all marine invertebrates.
Their tentacles are used as suckers to immobilize their prey.
Cuttlefish are voracious feeders and they have a cannibalistic propensity.
They eat other cuttlefishes, and various mollusks such as shrimps, crabs, octopuses, fishes and worms.
They have a relatively short 18 month life expectancy because they have many natural predators including sharks, dolphins, seals, seabirds and of course - other cuttlefish.
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