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In the 1983 James Bond film Octopussy, the blue-ringed octopus is the prominent symbol of the secret order of female bandits and smugglers, appearing in an aquarium tank, on silk robes, and as a tattoo on women in the order. [28] [2] The Adventure Zone featured a blue-ringed octopus in its "Petals to the Metal" series. [29]
What makes this octopus famous is its venom. Saliva glands of the southern blue-ringed octopus produce the deadly neurotoxin, maculotoxin. [10] The neurotoxin, tetrodotoxin (TTX), is secreted in the posterior salivary gland, which is located in the intestinal blood system of the octopus. This may provide the toxin into its bloodstream.
The greater blue-ringed octopus, despite its vernacular name, is a small octopus whose size does not exceed 10 centimetres (3.9 in), arms included, with an average weight of 80 grams (2.8 oz). Its common name comes from the relatively large size of its blue rings (7 to 8 millimetres [0.28 to 0.31 in] in diameter), which are larger than those of ...
When the octopus is approached, it may extend an arm to investigate. 66% of Enteroctopus dofleini in one study had scars, with 50% having amputated arms. [111] The blue rings of the highly venomous blue-ringed octopus are hidden in muscular skin folds which contract when the animal is threatened, exposing the iridescent warning. [112]
Secrets of the Octopus explores the life, culture, and behavior of different octopus species across the globe. Featuring narration by actor Paul Rudd, and commentary and discussion by a number of marine biologists, scientists, and experts in the field, the documentary series seeks to bring viewers closer than ever to one of the planet's most elusive and alien creatures.
Blue-lined octopuses are known to be nocturnal hunters, while other species in the genus such as the greater blue-ringed octopus (H. Lunulata) is known to be diurnal hunter. Prey for blue-lined octopuses mostly consists of crustaceans and stomatopods, however in captivity they have been recorded to eat live fish, suggesting they do in the wild ...
Octopus Cuvier, 1798 (99 species) Paroctopus Naef, 1923 (3 species) Pinnoctopus d'Orbigny, 1845 (2 species) Pteroctopus P. Fischer, 1882 (6 species) Robsonella Adam, 1938 (2 species) Scaeurgus Troschel, 1857 (5 species) Teretoctopus Robson, 1929 (2 species) Thaumoctopus Norman & Hochberg, 2005 (monotypic) Wunderpus Hochberg, Norman & Finn, 2006 ...
Blue-ringed octopuses are venomous. They spend much of their time hiding in crevices whilst displaying effective camouflage patterns with their dermal chromatophore cells. However, if they are provoked, they quickly change colour, becoming bright yellow with each of the 50-60 rings flashing bright iridescent blue within a third of a second. [44]