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Cuttlefish change color and pattern (including the polarization of the reflected light waves), and the shape of the skin to communicate to other cuttlefish, to camouflage themselves, and as a deimatic display to warn off potential predators. Under some circumstances, cuttlefish can be trained to change color in response to stimuli, thereby ...
The inner surface of the suckers (acetabulum) are reinforced with rigid sucker rings which are smooth in Sepiolida, have blunt teeth in Sepiida and sharply pointed teeth in Loliginidae and Oegopsida. The arms and/or tentacles of some oegopsid families have also evolved claw-like hooks.
The Patagonian toothfish (Dissostichus eleginoides), also known as Chilean sea bass, mero, and icefish, [2] is a species of notothen found in cold waters (1–4 °C or 34–39 °F) between depths of 45 and 3,850 m (150 and 12,630 ft) in the southern Atlantic, Pacific, and Indian Oceans and Southern Ocean on seamounts and continental shelves around most Subantarctic islands.
A typical radula comprises a number of bilaterally-symmetrical self-similar rows of teeth rooted in a radular membrane in the floor of their mouth cavity. Some species have teeth that bend with the membrane as it moves over the odontophore, whereas in other species, the teeth are firmly rooted in place, and the entire radular structure moves as one entity.
Sepia is a genus of cuttlefish in the family Sepiidae encompassing some of the best known and most common species. The cuttlebone is ellipsoid in shape. The name of the genus is the Latinised form of the Ancient Greek σηπία ( sēpía ) "cuttlefish".
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]
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 ...
Sepia esculenta, the golden cuttlefish, is a cuttlefish ranging from the Russian seas to the Philippines and throughout the western Pacific. [1] This species of cuttlefish is a nektobenthic organism living with a range of depths between 10m-150m (33 ft-492 ft) [2] but is primarily found within the shallow, coastal waters from Japan to the Philippines at a depth between 10m-100m. [3]