Octopuses are sea animals famous for their rounded bodies, bulging eyes and eight long arms. These cool critters live in all the world’s oceans, but they’re especially abundant in warm, tropical waters. Like their cousin, the squid, octopuses are often considered ‘ monsters of the deep’, lurking in the depths of the seas. However, there are some kinds of octopus that live in relatively shallow waters. Fukuda, Y. 1987. Histology of the long digital tentacles. In: W.B. Saunders & N.H. Landman (eds.) Nautilus: The Biology and Paleobiology of a Living Fossil. Springer Netherlands. pp. 249–256. doi: 10.1007/978-90-481-3299-7_17 Even the etymology of the word suggests an answer to our question. The New Latin word octopus derives from the Greek ”oktopous” which literally translates as ”eight-footed”. So there you have it, octopuses have eight legs, it’s a fact.

Octopuses live in oceans all over the world. Most are pelagic, meaning they live near the water's surface in shells, reefs and crevices. Some species live on the floor of the ocean, making their homes out of caves. Habits

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Branched arms and other limb abnormalities have also been recorded in cuttlefish, [23] squid, [24] and bobtail squid. [25] Variability [ edit ]

Regardless of whether Tentacle is in listening mode or polling mode, all communication between the Tentacle and Octopus is performed over a secure ( TLS) connection. Octopus and Tentacle both have a public/private key pair that they use to establish the TLS connection and verify the identity of the other party. It is, in fact, true that all octopus species are characterized by the trait of having eight arms. However, the main confusion around this fact is the term used to describe the octopus’ limbs. Limbs, Tentacles, Arms and Legs The researchers say they're not sure what the benefits of living in a densely populated settlement are for these octopuses, but it may just be a case of necessity, with limited den spaces available in the otherwise flat and featureless area. Finally, why do octopuses have blue blood?Ruth A., Byrne; Kuba, Michael J.; Meisel, Daniela V.; Griebel, Ulrike; Mather, Jennifer A. (August 2006). "Does Octopus vulgaris have preferred arms?". Journal of Comparative Psychology. 120 (3): 198–204. doi: 10.1037/0735-7036.120.3.198. PMID 16893257. Zelman, I.; Titon, M.; Yekutieli, Y.; Hanassy, S.; Hochner, B.; Flash, T. (2013). "Kinematic decomposition and classification of octopus arm movements". Frontiers in Computational Neuroscience. 7: 60. doi: 10.3389/fncom.2013.00060. PMC 3662989. PMID 23745113. The Haliphron Atlanticus is a sizeable octopus species widely known as the seven-arm octopus. One might assume from the name of this octopus, which is to be found in the Pacific and Atlantic Oceans that it only has seven arms. The truth is that the male seven-arm octopus only appears to have seven arms. The eighth arm of the males is used for reproduction and is coiled in a sac beneath its right eye. This is the reason why the species have acquired this misleading name but in fact, even the seven-arm octopus is characterized by the existence of eight limbs. How Many Arms Are You Missing Today?