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The scientific Latin term octopus was derived from Ancient Greek ὀκτώπους (oktōpous), a compound form of ὀκτώ (oktō, 'eight') and πούς (pous, 'foot'), itself a variant form of ὀκτάπους, a word used for example by Alexander of Tralles (c. 525 – c. 605) for the common octopus. [5] [6] [7] The standard pluralised ...
A. aculeatus has been described as "the only land octopus", [1] because it lives on beaches walking from one tidal pool to the next hunting for crabs. Many other octopuses can crawl short distances on land when necessary, but only A. aculeatus is known to do so on a routine basis.
Octopus bimaculoides observed at Nicholson Point in La Jolla, California in August, 2024. Close-up of the chromatophores on Octopus bimaculoides. The California two-spot octopus (Octopus bimaculoides), often simply called a "bimac", is an octopus species native to many parts of the Pacific Ocean including the coast of California. One can ...
Octopus is the largest genus of octopuses, comprising about 100 species.These species are widespread throughout the world's oceans. Many species formerly placed in the genus Octopus are now assigned to other genera within the family.
Octopus vulgaris grows to 25 cm (10 inches) in mantle length with arms up to 1 m (3.3 feet) long. [3] It lives for 1–2 years and may weigh up to 9 kg (20 pounds). [4] [5] Mating may become cannibalistic. [6] O. vulgaris is caught by bottom trawls on a huge scale off the northwestern coast of Africa. More than 20,000 tonnes (22,000 short tons ...
Octopodiformes is a superorder of the subclass Coleoidea, comprising the octopuses and the vampire squid. All living members of Octopodiformes have eight arms , either lacking the two tentacles of squid (as is the case in octopuses) or modifying the tentacles into thin filaments (as in vampire squid).
To understand the inner details of octopus lives, researchers dived for about a month at a reef off the coast of Eilat, Israel, and tracked 13 octopuses for a total of 120 hours using several cameras.
Some larger individuals have weighed in at 50 kg (110 lb), with a radial span of 6 m (20 ft). [3] American zoologist G. H. Parker found that the largest suckers on a giant Pacific octopus are about 6.4 cm (2.5 in) and can support 16 kg (35 lb) each. [3]