A group of octopuses can WebCollective Nouns: You may have heard of a herd of cows, a school of fish, a flock of geese, or even a murder of crows. [129] Dates of divergence are from Krger et al., 2011 and Fuchs et al., 2019.[124][123]. [50] The nervous system is complex, only part of which is localised in its brain, which is contained in a cartilaginous capsule. In fact, some of themif not all of themwill even say it in a ridiculing way, as a sleight to those who said octopuses. [51] Two-thirds of an octopus's neurons are in the nerve cords of its arms; these are capable of complex reflex actions without input from the brain. The ingress of water is achieved by contraction of radial muscles in the mantle wall, and flapper valves shut when strong circular muscles force the water out through the siphon. [45], The digestive system of the octopus begins with the buccal mass which consists of the mouth with its chitinous beak, the pharynx, radula and salivary glands. Dependent upon age, young flamingos are generally known as chicks, hatchlings, juveniles or a creche of flamingos.This latter term refers to the rearing of a single chick by parents who then pass the chick on into a group which is guarded and supervised by a small number of adult flamingos during the day, The creature may make a jet-propelled pounce on prey and pull it toward the mouth with its arms, the suckers restraining it. WebThe cephalopods do have eight tentacles and there may be three ways to describe a group of them, but only one is technically correct. All species of cephalopods live in saltwater environments, and while some species can tolerate brackish, or slightly salty water, none can live in freshwater. 
[64][65], When octopuses reproduce, the male uses a specialised arm called a hectocotylus to transfer spermatophores (packets of sperm) from the terminal organ of the reproductive tract (the cephalopod "penis") into the female's mantle cavity. ", "The great escape: Inky the octopus legs it to freedom from aquarium", "Tales from the Cryptic: The Common Atlantic Octopus", "Octopuses and Relatives: Predators and Defenses", "An Observation of Inking Behavior Protecting Adult, "Even Severed Octopus Arms Have Smart Moves", "Dynamic mimicry in an Indo-Malayan octopus", "Pathogens and immune response of cephalopods", "Genus-level phylogeny of cephalopods using molecular markers: current status and problematic areas", "A Broad Brush History of the Cephalopoda", "Systematics and Phylogenetic Relationships of New Zealand Benthic Octopuses (Cephalopoda: Octopodoidea)", "Trade-off between transcriptome plasticity and genome evolution in cephalopods", "[Review] The Toilers of the Sea by Victor Hugo & Translated by James Hogarth", "Why Mark Zuckerberg Octopus Cartoon Evokes 'Nazi Propaganda,' German Paper Apologizes", "8-Foot Octopus Wrestles Diver Off California Coast, Rare Encounter Caught on Camera", "What makes blue-rings so deadly? They are similar in structure to those of a fish, and are enclosed in a cartilaginous capsule fused to the cranium. When someone refers to a snake den, the word den is used as a collective noun. Once hatched, most cephalopods are tiny but grow quickly, doubling in size within two or three weeks, Voight said. Animal group names (or collective nouns for animals) are specific terms used to describe a collection of animals of the same species or a related group of species. As soft-bodied cephalopods, they lack the external shell of most molluscs, including other cephalopods like the nautiloids and the extinct Ammonoidea. [5][6][7] The standard pluralised form of "octopus" in English is "octopuses";[8] the Ancient Greek plural , "octopodes" (/ktpdiz/), has also been used historically. Lesions begin to form and the octopus literally degenerates. Rather than blending in with the seafloor, it changes its skin color and how it moves its tentacles to take on the shape of other sea creatures. [57], Attached to the brain are two organs called statocysts (sac-like structures containing a mineralised mass and sensitive hairs), that allow the octopus to sense the orientation of its body. 
[98] Young octopuses learn nothing from their parents, as adults provide no parental care beyond tending to their eggs until the young octopuses hatch. [2] The Octopoda consists of around 300 known species[120] and were historically divided into two suborders, the Incirrina and the Cirrina. What is octopus called in food? Post date: 28 yesterday. Latin words are sometimes pluralized with an WebA African Buffalo Herd, Gang, Troop, Obstinacy Albatross Flock, Rookery, Gam Ape Shrewdness, Troop Ant Army, Bike, Colony, Nest, Swarm Alpaca Herd American Bison [104], A "moving rock" trick involves the octopus mimicking a rock and then inching across the open space with a speed matching that of the surrounding water. [78] The LPSO has been described as particularly social, living in groups of up to 40 individuals. Octopuses inhabit various regions of the ocean, including coral reefs, pelagic waters, and the seabed; some live in the intertidal zone and others at abyssal depths. consortium of octopuses What Type of Word is "Consortium"? But squid and octopuses don't have shells, which means they need some other way of escaping predators. They do this to both hide from predators and disguise themselves from prey. Who were the Vikings, the warriors who raided Europe and explored the New World? The jaw. [86], A benthic (bottom-dwelling) octopus typically moves among the rocks and feels through the crevices. [117] A gram-negative bacterium, Vibrio lentus, can cause skin lesions, exposure of muscle and sometimes death. When someone refers to a snake den, the word den is being used as a collective noun. While it was long assumed that all cuttlefish and squids lay their eggs and then perish, there's at least one species of squid that doesn't. Opsins in the skin respond to different wavelengths of light and help the animals choose a coloration that camouflages them; the chromatophores in the skin can respond to light independently of the eyes. Octopuses are not territorial but generally remain in a home range; they may leave in search of food. [121] The incirrate octopuses (the majority of species) lack the cirri and paired swimming fins of the cirrates. The blood vessels consist of arteries, capillaries and veins and are lined with a cellular endothelium which is quite unlike that of most other invertebrates. Eight tentacles, three plural forms, and only one right way to say it. An octopus is a type of cephalopod, a group of animals that includes squid, cuttlefish, and nautiluses. What is a group of octopus called? A group of otters has various names including: a bevy, family, lodge or a romp. When the octopus is approached, it may extend an arm to investigate. [26] Most of the body is made of soft tissue allowing it to lengthen, contract, and contort itself. [91] When in no hurry, they usually crawl on either solid or soft surfaces. Octopus are usually solitary, except during mating season, or when food is abundant. [113][114], The diseases and parasites that affect octopuses have been little studied, but cephalopods are known to be the intermediate or final hosts of various parasitic cestodes, nematodes and copepods; 150 species of protistan and metazoan parasites have been recognised. [110], When under attack, some octopuses can perform arm autotomy, in a manner similar to the way skinks and other lizards detach their tails. WebYou wouldnt be alone if you thought the octopus and squid were the same animals. Q for Quails A group of quail is called a covey. As progress is made, other arms move ahead to repeat these actions and the original suckers detach. [59] Octopuses appear to have poor proprioceptive sense and must observe the arms visually to keep track of their position. The octopus is an invertebrate, therefore it cannot be a fish, which belong to the group of animals known as vertebrates. Grammatically speaking, the plural for octopus is octopuses. [62] The main pigment in the ink is melanin, which gives it its black colour. To them, octopus has an ending similar to cactus and fungus, whose plural forms are, respectively, cacti and fungi. [160], In classical Greece, Aristotle (384322 BC) commented on the colour-changing abilities of the octopus, both for camouflage and for signalling, in his Historia animalium: "The octopus seeks its prey by so changing its colour as to render it like the colour of the stones adjacent to it; it does so also when alarmed. Enchantedlearning.com, (2014). R for Ravens During crawling, the heart rate nearly doubles, and the animal requires ten or fifteen minutes to recover from relatively minor exercise. 5. This makes the blood very viscous and it requires considerable pressure to pump it around the body; octopuses' blood pressures can exceed 75mmHg (10kPa). For example, a 2.4-metre (8ft) Pacific octopus, said to be nearly perfectly camouflaged, "lunged" at a diver and "wrangled" over his camera before it let go. WebWhat is a group of baby flamingos called? [68]:74 The female aerates them and keeps them clean; if left untended, many will die. They feed on copepods, arthropod larvae and other zooplankton, eventually settling on the ocean floor and developing directly into adults with no distinct metamorphoses that are present in other groups of mollusc larvae. 605) for the common octopus. During gastrulation, the margins of this grow down and surround the yolk, forming a yolk sac, which eventually forms part of the gut. "They can actually keep the jet going while they're in the air to continue to propel themselves forward," Staaf said. [104], Octopuses can create distracting patterns with waves of dark coloration across the body, a display known as the "passing cloud". A farmers flock can range from two sheep to over 1,500 ewes with their lambs. [81] They are not migratory. , How many hearts does an octopus have?, What meat is used in a shepherd's pie? A day octopus (Octopus cyanea) swimming off the coast of Kona, Hawaii. "[161] Aristotle noted that the octopus had a hectocotyl arm and suggested it might be used in sexual reproduction. [139], A battle with an octopus plays a significant role in Victor Hugo's 1866 book Travailleurs de la mer (Toilers of the Sea). For other uses, see, Cosgrove, J.A. The standard pluralised form of "octopus" in English is "octopuses"; the Ancient Greek plural , "octopodes" (/ktpdiz/), has also been used historically. Octopuses are sea animals famous for their rounded bodies, bulging eyes, and eight long arms. The sac is close enough to the funnel for the octopus to shoot out the ink with a water jet. [69] She does not feed during this time and dies soon after. Related: Giant squid: The real-life ocean Kraken. [19] The largest specimen of this species to be scientifically documented was an animal with a live mass of 71kg (157lb). If you ask any group of people on the street, What do you call more than one octopus, most of the people in that group will probably say octopuses. Females will spend all their time aerating and protecting their eggs until they are ready to hatch. [online] Available at: Enchantedlearning.com, (2014). It takes about three hours for O. vulgaris to create a 0.6mm (0.024in) hole. Jetting is used to escape from danger, but is physiologically inefficient, requiring a mantle pressure so high as to stop the heart from beating, resulting in a progressive oxygen deficit. Related: Octlantis: See photos of tight-knit gloomy octopus communities. [106] 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. Web3.Collective Noun for Octopuses Grammar Monster. The ink is thought to reduce the efficiency of olfactory organs, which would aid evasion from predators that employ smell for hunting, such as sharks. WebA group of octopuses is called a consortium. You wouldnt be alone if you thought the octopus and squid were the very same animals. When it is resting after a meal, absorption through the skin can drop to 3% of its total oxygen uptake. [136][137][138] The Akkorokamui is a gigantic octopus-like monster from Ainu folklore, worshipped in Shinto. [72], Octopus reproductive organs mature due to the hormonal influence of the optic gland but result in the inactivation of their digestive glands. The word cephalopod means "head foot" in Greek, referring to the fact that these two body parts are merged in these animals, according to the New World Encyclopedia. [37] In the deep-sea genus Stauroteuthis, some of the muscle cells that control the suckers in most species have been replaced with photophores which are believed to fool prey by directing them to the mouth, making them one of the few bioluminescent octopuses. There are currently more than 300 species of octopus recorded, and more get discovered every decade. To be knowledgeable about the anatomy, classification, and species within the octopus family, you dont have to have a degree in marine biology. They belong to the most common family of octopuses in the world, Octopodidae. 605) for the common octopus. [133] The Kraken are legendary sea monsters of giant proportions said to dwell off the coasts of Norway and Greenland, usually portrayed in art as giant octopuses attacking ships. New York, Adding to their evasive techniques, many types of squids, octopuses and cuttlefish are able to use a self-produced ink to cloud the water and potentially confuse or irritate their predators. [112], Some octopuses, such as the mimic octopus, can combine their highly flexible bodies with their colour-changing ability to mimic other, more dangerous animals, such as lionfish, sea snakes, and eels. Is octopus and squid the same thing? For males, this typically begins after mating. When swimming, the head is at the front and the siphon is pointed backward but, when jetting, the visceral hump leads, the siphon points at the head and the arms trail behind, with the animal presenting a fusiform appearance. [39][40][41] In cold conditions with low oxygen levels, haemocyanin transports oxygen more efficiently than haemoglobin. [109], Once they have been seen by a predator, they commonly try to escape but can also use distraction with an ink cloud ejected from the ink sac. In turn, the coleoids (including the squids and octopods) brought their shells inside the body and some 276 million years ago, during the Permian, split into the Vampyropoda and the Decabrachia. [134][135] One translation of the Hawaiian creation myth the Kumulipo suggests that the octopus is the lone survivor of a previous age. Can carbon-plated running shoes cause injury? [130][131], The octopus genome is unremarkably bilaterian except for large developments of two gene families: protocadherins, which regulate the development of neurons; and the C2H2 zinc-finger transcription factors. The collective noun highlights the fact that theres more than one snake in the group. This buoyancy means less work for the squid they can just float. Hence, there isn't a widely accepted collective noun for a group of octopuses. The dumbo octopus (Grimpoteuthis) is actually a name for a group of deep-sea umbrella octopuses, all of which have fins resembling the ears of Dumbo the elephant. 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A Type of word is `` consortium '', Octopodidae and must observe the arms visually to keep of! If left untended, many will die octopuses are not territorial but generally remain in a home ;... See, Cosgrove, J.A it can not be a fish, which means they need some other of. Cephalopods, they lack the external shell of most molluscs, including other cephalopods like nautiloids. Within two or three weeks, Voight said invertebrate, therefore it can not be a,!