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An octopus (pl.: octopuses or octopodes [a]) is a soft-bodied, eight-limbed mollusc of the order Octopoda (/ ɒ k ˈ t ɒ p ə d ə /, ok-TOP-ə-də [3]).The order consists of some 300 species and is grouped within the class Cephalopoda with squids, cuttlefish, and nautiloids.
Grimpoteuthis [1] is a genus of pelagic cirrate (finned) octopods known as the dumbo octopuses. [2] The name "dumbo" originates from their resemblance to the title character of Disney 's 1941 film Dumbo , having two prominent ear-like fins which extend from the mantle above each eye.
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 ...
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.
Since these octopuses do not live for long, they mature rapidly and can hunt for food to feed themselves right after hatching. [8] Hatchlings feed on amphipods or mysid shrimp. [9] [10] As they grow, the list of what they eat grows with them. California two-spot octopuses eat anything they can find, like fish and crustaceans.
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.
The Marine Conservation Society's Seasearch program, which relies on contributions from rockpoolers, snorkelers, and divers, reported an intriguing trend in octopus numbers during 2022.
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]