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The common octopus (Octopus vulgaris) is a mollusk belonging to the class Cephalopoda. Octopus vulgaris is one of the most studied of all octopus species, and also one of the most intelligent. It ranges from the eastern Atlantic, extends from the Mediterranean Sea and the southern coast of England , to the southern coast of South Africa.
The giant Pacific octopus (Enteroctopus dofleini) is often cited as the largest known octopus species. Adults usually weigh around 15 kg (33 lb), with an arm span of up to 4.3 m (14 ft). [ 19 ] The largest specimen of this species to be scientifically documented was an animal with a live mass of 71 kg (157 lb). [ 20 ]
East Pacific red octopus, rescued from a gull near Los Osos, California. Octopus rubescens (commonly the East Pacific red octopus which is a Cephalopod, and also known as the ruby octopus, a preferred common name due to the abundance of octopus species colloquially known as red octopus [1]) is the most commonly occurring shallow-water octopus on much of the North American West Coast and a ...
The only other possible contender for the largest species of octopus is the seven-arm octopus (Haliphron atlanticus), based on a 61-kilogram (134-pound), incomplete carcass estimated to have a live mass of 75 kg (165 lb).
Macrotritopus Grimpe, 1922 (2 species) 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)
One species, however, was seen exhibiting behavior that was not only uncharacteristically social but almost romantic. Called the Larger Pacific Striped Octopus species exhibits rare social and ...
Octopus tetricus, the gloomy octopus, the common Sydney octopus, [3] or the peachy octopus, [4] is a species of octopus from the subtropical waters of eastern Australia and northern New Zealand. [2] O. tetricus belongs to the Octopus vulgaris species group. All species within the O. vulgaris group are similar in morphology, [5] behaviour, and ...
A study of octopus DNA may have solved an enduring mystery about when the rapidly melting West Antarctic ice sheet last collapsed, unlocking valuable information about how much future sea levels ...