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Cuttlefish eat small molluscs, crabs, shrimp, fish, octopuses, worms, and other cuttlefish. Their predators include dolphins, larger fish (including sharks), seals, seabirds, and other cuttlefish. The typical life expectancy of a cuttlefish is about 1–2 years. Studies are said to indicate cuttlefish to be among the most intelligent ...
The giant cuttlefish (Sepia apama), also known as the Australian giant cuttlefish, [3] is the world's largest cuttlefish species, growing to 50 cm (20 in) in mantle length and up to 100 cm (39 in) in total length (total length meaning the whole length of the body including outstretched tentacles). They can weigh over 10.5 kg (23 lb).
The cuttlebone of a cuttlefish. This is the largest hard part of a cuttlefish, maintaining the rigidity of its body.. The common cuttlefish is one of the largest species of cuttlefish with a mantle length reaching up to 45 cm and a mass of 4 kg on a presumed male, although this is for an exceptional specimen in temperate waters; specimens in subtropical waters rarely surpass a mantle length of ...
Dorsal surface of Sepia lycidas cuttlebone. Studies have shown a morphological asymmetry present in the cuttlebone curvature within the kisslip cuttlefish. [8] The cuttlebone may be more convex, or more developed, on one side than it is the other, which causes the cuttlefish to exhibit preferences towards its right or left side when hunting prey. [8]
Examination of a 9 m (30 ft) giant squid, the second largest cephalopod, that washed ashore in Norway in 1954 In zoology, deep-sea gigantism or abyssal gigantism is the tendency for species of deep-sea dwelling animals to be larger than their shallower-water relatives across a large taxonomic range.
The pharaoh cuttlefish (Acanthosepion pharaonis) is a large cuttlefish species, growing to 42 cm in mantle length and 5 kg in weight. [2] [3]Acanthosepion pharaonis is likely a complex of at least three species, Acanthosepion pharaonis I, commonly located in the Red Sea and Persian Gulf, A. pharaonis II, located from Japan to the Gulf of Thailand and northern Australia; and A. pharaonis III ...
The cuttlefish will hold onto its prey with its arms and inject it with venom to paralyze it. [9] Once the prey is sedated, the cuttlefish will bite off small pieces with its beak. Research is currently ongoing into the precise makeup and evolution of cuttlefish venoms, and how they compare to those found in other animals. [10] [11]
Striae (furrows) on the anterior surface form an inverted V-shape. The limbs of the inner cone are very short, narrow, and uniform in width, with the U-shape thickened slightly towards the back. The cuttlebone of M. pfefferi does not possess an outer cone, unlike that of most other cuttlefish species. [4]