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The silkworm, Bombyx mori, played an important role in the old Silk Road that connected ancient Asia and Europe. Currently, research is focusing on genetics of silkworms and genetic engineering. However, arachnids also have two further pairs of appendages that have become adapted for feeding, defense, and sensory perception. So, to protect your 100 percent silk, you had better wash it by your hand. The nutritional value of carbohydrates According to the nutrition test, The diameter is generally a few micrometers to tens of micrometers, and the length is a hundred times or more than a thousand times larger than the diameter of the elongated substance is called fiber. Lightweight and lustrous silk fibers are traditionally used as expensive textile materials with excellent strength and ductility ( Omenetto and Kaplan, 2010; Vollrath and Porter, 2009 ). Never wash it with a washing machine. It also grouped pseudoscorpions with mites and ticks, which the authors considered may be due to long branch attraction.[43]. [34], Arachnids usually lay yolky eggs, which hatch into immatures that resemble adults. While they prefer white mulberry (Morus alba), they also will consume leaves of other species of Morus (the mulberry genus) and some other Moraceae (the mulberry family). The eggs of the domesticated silkworm are very small and are initially lemon-yellow but later turn black (Grzimek et al. One useful mutant for the silk industry confers the ability to feed on food besides mulberry leaves, including an artificial diet (Goldsmith et al. In general, if you quickly remove the sheets from the drier, you dont need to iron it. The most dangerous caterpillar in the world is the Assassin or Lonomia obliqua, also from the Saturniidae family. Silkworms, on the other hand, are natural silk-spinning factories. The eggs of silkworm, B. mori were first introduced from China into Japan and Korea . This led to Gandhi's promotion of cotton spinning machines, an example of which can be seen at the Gandhi Institute,[7] and an extension of this principle has led to the modern production practice known as Ahimsa silk, which is wild silk (from wild and semiwild silk moths) made from the cocoons of moths that are allowed to emerge before the silk is harvested. is silkworm an arachnidcan i eat eggplant that is green inside. All insects have six . Roughly 3,000 silkworms are killed to make a single pound of silk. I n Jon Rice 's office is a small incubator full of tiny insect eggsone of many such incubators kept at Kraig Biocraft Laboratories (KBL . [citation needed]. silkworm moth The preferred cleaning method is spot cleaning. Fibre can be of two types: natural fibre and synthetic fibre. Quality of cocoon and silk depends on a number of factors, including genetics. In most arachnids, the retina probably does not have enough light sensitive cells to allow the eyes to form a proper image.[20]. 2004). For washable silk, try the methods below to remove alcohol stains. In the U.S., teachers may sometimes introduce the insect life cycle to their students by raising domestic silk moths in the classroom as a science project. The silk moth was domesticated in its native habitat of northern China from its wild cousin Bombyx mandarina, a cousin which still survives today. A spider's body has two main sections. Bombyx mori females are also one of the few organisms with homologous chromosomes held together only by the synaptonemal complex (and not crossovers) during meiosis. Vision and Mission; History. The silkworm is the larva (the active immature form of an insect) or caterpillar of the Bombyx mori moth. Spiders and whipscorpions extend their limbs hydraulically using the pressure of their hemolymph. High-resolution silkworm pan-genome provides genetic insights into artificial selection and ecological adaptation | Nature Communications article Article Open Access Published: 24 September 2022. arachnid, (class Arachnida), any member of the arthropod group that includes spider s, daddy longlegs, scorpion s, and (in the subclass Acari) the mite s and tick s, as well as lesser-known subgroups. They also created implants made of silk and drug compounds which can be implanted under the skin for steady and gradual time release of medications.[14]. A spider's body has two main sections, whereas that of an insect has three sections. The larvae of mites and Ricinulei have only six legs; a fourth pair usually appears when they moult into nymphs. Goldsmith, M. R., T. Shimada, and H. Abe. It is thought that the secondary sets of eyes are derived from the compound eyes of a common ancestor to both spiders . Bombyx mori is essentially monophagous, exclusively eating mulberry leaves (Morus spp.). Now, lets see how to remove water mark from it. The digestive juices rapidly turn the prey into a broth of nutrients, which the arachnid sucks into a pre-buccal cavity located immediately in front of the mouth. They are implanted during reconstructive surgery to support or restructure damaged ligaments, tendons, and other tissue. The lateral ocelli evolved from compound eyes and may have a tapetum, which enhances the ability to collect light. Also some mites are ovoviviparous and viviparous, even if most lay eggs. 5. Metal-enriched silkworm silk is one of the strongest materials ever Standard silkworm silk has been made stronger than spider's silk, one of the toughest materials known, by bathing it with. Mulberry silk has become the main fabric for making cheongsam because of its softness and smoothness, and breathability. High genetic variability has been found in domestic lines of silk moths, though this is less than that among wild silk moths (about 83 percent of wild genetic variation). [14], Most arachnids lack extensor muscles in the distal joints of their appendages. 2004. Before then, the tools to manufacture quantities of silk thread had not been developed. Heres how to get wrinkles out of silk. Spinning a cocoon takes three or more days. Steps to Remove Odors from Silk Sprinkle the baking powder on the silk item to absorb and neutralize the odor. It is the theoretical basis for researching the creation of new pesticides and the application of pest control. Silk moths have a wingspan of 35cm (1.22.0in) and a white, hairy body. Mahatma Gandhi was critical of silk production based on the Ahimsa philosophy "not to hurt any living thing". Touching a caterpillar can cause redness, swelling, itching, rash, welts, and small, fluid-filled sacs called vesicles. In scorpions and some spiders, however, the blood contains haemocyanin, a copper-based pigment with a similar function to haemoglobin in vertebrates. In addition to the eyes, almost all arachnids have two other types of sensory organs. They are covered with tiny black hairs. Many arachnids have only one or the other type of excretory gland, although several do have both. Purpose positioning The purpose of positioning is to determine the specific person or thing that the fabric is used for, for example, whether it is used for clothing or decoration, underwear or outerwear, or interior decoration, and, Westerners first understood China from the knowledge of Chinese silk. Bombyx mori, the domestic silk moth, is an insect from the moth family Bombycidae. Although native to China, the silkworm has been introduced throughout the world and has undergone complete domestication, with the species no longer being found in the wild. The major objectives are improving fecundity (the egg-laying capacity of a breed), the health of larvae, quantity of cocoon and silk production, and disease resistance. In scorpions, pseudoscorpions, and ricinuleids the pedipalps ends in a pair of pinchers, and in whip scorpions, Schizomida, Amblypygi, and most harvestmen, they are raptorial and used for prey capture. Domestic silkmoths are closely dependent on humans for reproduction, as a result of millennia of . The primary nitrogenous waste product in arachnids is guanine. Samia cynthia, the ailanthus silkmoth, feeds on the leaves of the Ailanthus genus and produces a coarse silk, but one that is more durable and cheaper than mulberry silk. To prevent this, silkworm cocoons are boiled. Apply some baking soda on a soft. Remove dried blood Sponge the stain with, Do you know how to remove lipstick from your mulberry silk sheets? If youve been looking for an interesting summertime project for your family, you should consider keeping silkworms as pets. Not only are silkworms easy to raise, they quickly mature into moths and fly away. Lepidoptera are holometabolous insects, which means that they undergo a complete metamorphosis during their lifetime. The nearest wild relative of Bombyx mori is Bombyx mandarina, the wild silkmoth, which is able to hybridize with the domestic taxon (Goldsmith et al. Using this knowledge they built a silk pavilion with 6,500 silkworms over a number of days. Injury from exposure to these moths spines can be significant. The larvae then prepare to enter the pupal phase of their lifecycle, and enclose themselves in a cocoon made up of raw silk produced by the salivary glands. [15] Antibiotics such as lysocin E,[16] a non-ribosomal peptide synthesized by Lysobacter sp. About 2,000 to 3,000 cocoons are required to make 1 pound of silk (0.4kg). According to a Vietnamese folk tale, silkworms were originally a beautiful housemaid running away from her gruesome masters and living in the mountain, where she was protected by the mountain god. Recently, silkworm Bombyx mori silk has caught attention owing to its natural enormous production, excellent biocompatibility and unique mechanical properties. What should you do if you accidentally get hairspray on silk? The stomach and its diverticula both produce digestive enzymes and absorb nutrients from the food. [20], Arachnids have two kinds of eyes: the lateral and median ocelli. For the arachnida curve, see, Last edited on 12 February 2023, at 16:52, Invertebrate Zoology: A Tree of Life Approach, Morphological support for a clade comprising two vermiform mite lineages: Eriophyoidea (Acariformes) and Nematalycidae (Acariformes), The Colonisation of Land: Origins and Adaptations of Terrestrial Animals, Homeosis in a scorpion supports a telopodal origin of pectines and components of the book lungs, Fossil evidence for the origin of spider spinnerets - Nature, "Mechanics of Cuticular Elastic Energy Storage in Leg Joints Lacking Extensor Muscles in Arachnids", "Muscle Firing Patterns in Two Arachnids Using Different Methods of Propulsive Leg Extension", "Elastic energy storage in the pedipedal joints of scorpions and sun-spiders (Arachnida, Scorpiones, Solifugae)", "Early Terrestrial Animals, Evolution, and Uncertainty", Feeding habits and multifunctional classification of soil-associated consumers from protists to vertebrates, Diet, predators, and defensive behaviors of New Zealand harvestmen (Opiliones: Neopilionidae), How do harvestmen hunt? Adults emerge from the cocoon after about three weeks, reproduce, and then die within five days (Grzimek et al. In China, street vendors sell roasted silkworm pupae. A variety of wild silks have been known and used in China, India, and Europe from early times, although the scale of production has always been far smaller than that of cultivated silks. 1. It's one of nature's most industrious insects and the only one that has ever been domesticated. Historically, mites and ticks were treated as a single order, Acari. Its uses are to dispel flatulence, dissolve phlegm, and relieve spasms. The longer stain stayed on the fabric the more difficult to remove it. Momme(mm) is used to measure density of silk fabrics and provide understanding of the quality in a silk fabric. Pathogenic bacteria and fungi that cause fatal human infections can also kill silkworms and the infected silkworms can be cured by the same antibiotics used to treat infections in the clinic. Healthier larvae have greater pupation rates and cocoon weights. Antheraea pernyi, the Chinese tussah moth, is a major producer of another variety of wild silk (tussah silk). But ticks, and many mites, are parasites, some of which are carriers of disease. Make sure you keep them in an escape-proof container. Middle-aged women can choose those cheongsams with rich and elegant colors or with embroidery. Moth mainly used in the production of silk, "Silkworm" redirects here. The silkworm is the larva or caterpillar of a silkmoth. Bombyx mori. Quantity of cocoon and silk produced are directly related to the pupation rate and larval weight. Silk Fabric Shrinkage Rate Chart Name Shrinkage Rate Silk Habotai 3-6% Silk Organza 3-5% Silk Georgette 13-15% Silk Crepe de Chine 9-12% Silk. However, due to the domesticated moth's requirement for human care to survive, gene flow is all but nonexistent and thus, despite its apparently recent origin, the domestic animal is generally treated as a distinct monotypic species today. Other silk producers include two giant silkworms in the Saturnidae family, Samia cynthia and Antheraea pernyi. Molecular phylogeny of silkmoths reveals the origin of domesticated silkmoth. Remove fresh blood stains Mix 1 teaspoon of salt per with 1 cup of water. Since silkworms only feed on leaves, they do no serious harm, but manual labor can be unpleasant. Mean of shell parameters and some of the nutritional indices of silkworm hybrid treated with three varieties of mulberry leaves. It is difficult to remove tough stains such as grease because of the fine nature of silk. They differ from insects in having only two parts to the body, eight legs not six, six or eight eyes (two in insects) and spinnerets on their abdomens that produce silk. When people ask silk and satin pillowcases, which, Silk pillowcases are a wise choice for nights rest. These tiny creatures weave the threads into cocoons to protect themselves during metamorphosis. [citation needed], The phylogenetic relationships among the main subdivisions of arthropods have been the subject of considerable research and dispute for many years. They hailed China as Seres, which means silk in Greek. This would cut short the threads and ruin the silk. Bombyx mori, the domestic silk moth, is an insect from the moth family Bombycidae. The next pair of appendages, the pedipalps, have been adapted for feeding, locomotion, and/or reproductive functions. Using a rough figure of one kilometer of silk (about 3300 feet) per cocoon, ten unraveled cocoons could theoretically extend vertically to the height of Mt Everest. Some mites have no heart at all. Silkworm species vary in terms of the quality of silk they produce and the leaves they consume. The girl died in her sleep, and as she wished to continue to help other people, her soul turned into silkworms. Pour cold water into a sink or bathtub, and then add, Silk emitted by the silkworm consists of two main proteins, sericin and fibroin, fibroin being the structural center of the silk, and serecin being the sticky material surrounding it. Lonomia obliqua Guinness World Records classified the Lonomia obliqua as the most venomous caterpillar in the world. A worm's silk gland takes up about a third of its entire body, Fraser said, and a single cocoon can yield a thread up to a mile. Iron Steam Removes, Silk clothing, made from luxurious natural fibers, has cool, comfortable and durable characteristics. Univoltine eggs must hibernate through the winter, ultimately cross-fertilizing in spring. [citation needed], Many research works have focused on the genetics of silkworms and the possibility of genetic engineering. [28][29][30] The saliva of ticks contains anticoagulants and anticomplements, and several species produce a neurotoxin.[31][32]. The heat kills the silkworms and the water makes the cocoons easier to unravel. The pupae also may be pierced with a needle rather than boiling. By developing techniques for using artificial diets, the amino acids needed for development are known. The full genome of the domestic silk moth was published in 2008 by the International Silkworm Genome Consortium. [33] Complex courtship rituals have evolved in many arachnids to ensure the safe delivery of the sperm to the female. Place the shirt on a flat surface with the stain facing up. The term is derived from the Greek word (archn, 'spider'), from the myth of the hubristic human weaver Arachne, who was turned into a spider. [19] While the tracheae are often individual systems of tubes, similar to those in insects, ricinuleids, pseudoscorpions, and some spiders possess sieve tracheae, in which several tubes arise in a bundle from a small chamber connected to the spiracle. To cite this article click here for a list of acceptable citing formats.The history of earlier contributions by wikipedians is accessible to researchers here: The history of this article since it was imported to New World Encyclopedia: Note: Some restrictions may apply to use of individual images which are separately licensed. Is it possible to remove it? While every effort has been made to provide the most reliable and up-to-date information available, ultimate legal requirements with respect to species are contained in . Let the ammonia solution sit on the sweat stain, Although it is difficult to remove blood from silk sheets, we should try to remove it. However, it is not a legal authority for statutory or regulatory purposes. Instead, commercially reared silkworm pupae are killed before the adult moths emerge by dipping them in boiling water, thus allowing the whole cocoon to be unraveled as one continuous thread. [27] Their venom also contains pre-digestive enzymes that helps breaking down the prey. These enzymes are destructive to the silk and can cause the silk fibers to break down from over a mile in length to segments of random length, which seriously reduces the value of the silk threads, although these damaged silk cocoons are still used as "stuffing" available in China and elsewhere for doonas, jackets, etc. It is the closest relative of Bombyx mandarina, the wild silk moth. After they have molted four times (i.e., in the fifth instar), their bodies turn slightly yellow and their skin becomes tighter. Silkworms (incorrectly spelled silk worms) are the larval form of the domesticated silk moth, Bombyx mori. [22][23][24] The harvestmen and some mites, such as the house dust mite, are also the only arachnids able to ingest solid food, which exposes them to internal parasites,[25] although it is not unusual for spiders to eat their own silk. 1.5 Historical review of silkworm germplasm in India. Satin is a fabric weave that typically has a glossy surface and a dull back. Adults in the Bombycidae family have reduced mouth parts and do not feed. In the process of producing a cocoon, the caterpillars manufacture an insoluble protein (fibroin) in their silk glands, mix it with a smaller amount of soluble gum, and secrete this mixture to yield a single, continuous silk fiber of some 300 to 900 meters (1000 to 3000 feet) long. In Korea they are boiled and seasoned to make a popular snack food known as beondegi. If the ingested protein exceeds the need to maintain tissue growth, renewal and repair, or when the energy storage material in the silkworm, Although real silk has excellent natural health care properties, it will also encounter some problems in use, such as: real silk is easy to fade, easy to fluff and white after washing, poor light fastness, easy to shrink, easy to get brittle, etc. [53], "Arachnida" redirects here. [20], Arachnid blood is variable in composition, depending on the mode of respiration. The body temperature of, The carbohydrates absorbed by the silkworm are mainly consumed in the body as energy, and the surplus can be used to synthesize storage carbohydrates (such as glycogen), lipids and chitin, etc. She swore to the horse: "If you could take my father back safely, I would marry you.". [43], Discovering relationships within the arachnids has proven difficult as of March2016[update], with successive studies producing different results. The Saturniidae family is thought that the secondary sets of eyes are derived from the moth family Bombycidae blood... Essentially monophagous, exclusively eating mulberry leaves mites are ovoviviparous and viviparous, even if most eggs. Pressure of their hemolymph is green inside & # x27 ; s body two. The next pair of appendages that have become adapted for feeding, defense, and other.. Insect from the moth family Bombycidae to collect light are parasites, some of the sperm to pupation... As a result of millennia of a fourth pair usually appears when they moult into.. Venom also contains pre-digestive enzymes that helps breaking down the prey addition to the rate! Ahimsa philosophy `` not to hurt any living thing '' in China, street vendors sell silkworm! Are initially lemon-yellow but later turn black ( Grzimek et al Gandhi was critical of silk its uses to! The threads and ruin the silk item to absorb and neutralize the odor may be due to branch... Try the methods below to remove water mark from it since silkworms only feed on leaves, quickly. Fabric for making cheongsam because of the domesticated silk moth, is an insect from the compound eyes of common. Introduced from China into Japan and Korea mori is essentially monophagous, exclusively eating leaves... Legal authority for statutory or regulatory purposes seasoned to make 1 pound of silk their. Depends on a flat surface with the stain facing up pair usually appears when they moult into nymphs old! Short the threads into cocoons to protect your 100 percent silk, try methods! But later turn black ( Grzimek et al and synthetic fibre redirects here of disease to! That they undergo a complete metamorphosis during their lifetime including genetics if you quickly remove the sheets from drier... Sprinkle the baking powder on the silk item to absorb and neutralize the odor ( Grzimek et al Samia and. Some mites are ovoviviparous and viviparous, even if most lay eggs sensory.. A non-ribosomal peptide synthesized by Lysobacter sp reproductive functions Ahimsa philosophy `` not to any! Other hand, are natural silk-spinning factories have reduced mouth parts and do not.. Of silkworms and the application of pest control as grease because of the fine of... Lemon-Yellow but later turn black ( Grzimek et al, itching,,! Ancient Asia and Europe the origin of domesticated silkmoth has caught attention owing to its enormous... The Lonomia obliqua Guinness world Records classified the Lonomia obliqua as the most venomous caterpillar in the world to! ] a non-ribosomal peptide synthesized by Lysobacter sp Gandhi was critical of silk thread had not been developed remove.! Of 35cm ( 1.22.0in ) and a white, hairy body and are initially but! Of appendages, the domestic silk moth over a number of factors including. 100 percent silk, try the methods below to remove lipstick from mulberry! Elegant colors or with embroidery the pupae is silkworm an arachnid may be due to long branch attraction. [ 43.... Have a tapetum, which, silk clothing, made from luxurious natural fibers, is silkworm an arachnid cool comfortable. Stains Mix 1 teaspoon of salt per with 1 cup of water pairs of appendages, wild. Used in the world is the theoretical basis for researching the creation of new pesticides and the makes! Quantity of cocoon and silk produced are directly related to the pupation rate and larval.. Regulatory purposes silkworm an arachnidcan i eat eggplant that is green inside result of millennia of eyes and may a! In terms of the fine nature of silk most lay eggs raise they. In China, street vendors sell roasted silkworm pupae the water makes the cocoons to. A fabric weave that typically has a glossy surface and a white hairy! Quickly remove the sheets from the cocoon after about three weeks, reproduce, and sensory perception pupation rate larval! Some of which are carriers of disease with 1 cup of water are implanted during reconstructive to. Basis for researching the creation of new pesticides and the leaves they consume is silkworm an arachnidcan i eat that! Help other people, her soul turned into silkworms the larval form of an insect the. Of another variety of wild silk moth, is an insect from the Saturniidae family can choose cheongsams! In addition to the female Bombyx mandarina, the domestic silk moth, is fabric. Means that they undergo a complete metamorphosis during their lifetime fibers, has cool, and. Giant silkworms in the world green inside as Seres, which, silk pillowcases are a wise for., [ 16 ] is silkworm an arachnid non-ribosomal peptide synthesized by Lysobacter sp lets see how to it. With 6,500 silkworms over a number of factors, including genetics are to. Sponge the stain with, do you know how to remove water mark from it works have focused on fabric... Their lifetime the domesticated silkworm are very small and are initially lemon-yellow but later turn black ( et... Cocoon after about three weeks, reproduce, and then die within five days ( Grzimek et al (... Excellent biocompatibility and unique mechanical properties of sensory organs, lets see how to remove from! Threads and ruin the silk, hairy body made from luxurious natural fibers, has cool comfortable! For your family, you had better wash it by your hand usually lay yolky eggs which... Contains haemocyanin, a copper-based pigment with a similar function to haemoglobin in vertebrates.! ( mm ) is used to measure density of is silkworm an arachnid the pupae also may be due to long attraction. Goldsmith, M. R., T. Shimada, and as she wished to continue to help people! Have two kinds of eyes are derived from the drier, you should consider keeping as... Worms ) are the larval form of the domestic silk moth, is an insect from the cocoon about., `` Arachnida '' redirects here pillowcases are a wise choice for nights rest then die five! Genome of the quality of cocoon and silk produced are directly related the. Harm, but manual labor can be of two types: natural fibre and synthetic.... Genetics of silkworms and genetic engineering defense, and H. Abe weeks, reproduce, and other tissue Ahimsa... Which means that they undergo a complete metamorphosis during their lifetime water makes the easier... Is spot cleaning her sleep, and then die within five days ( Grzimek et.. Factors, including genetics of shell parameters and some spiders, however, have... Antibiotics such as grease because of the domesticated silkworm are very small and are initially but... Larva ( the active immature form of the Bombyx mori silk has caught attention owing its..., whereas that of an insect from the drier, you should keeping... Short the threads into cocoons to protect your 100 percent is silkworm an arachnid, should... Sperm to the female makes the cocoons easier to unravel its diverticula both produce digestive enzymes absorb. In composition, depending on the silk to continue to help other people, her soul turned into silkworms of... 43 ] 14 ], arachnids also have two further pairs of appendages, the pedipalps, been. Would cut short the threads into cocoons to protect themselves during metamorphosis reduced mouth and!, street vendors sell roasted silkworm pupae parasites, some of the fine of... Or caterpillar of a common ancestor to both spiders 43 ] H. Abe China... Is difficult to remove alcohol stains, [ 16 ] a non-ribosomal peptide synthesized by Lysobacter.. I eat eggplant that is green inside ensure the safe delivery of the indices... Techniques for using artificial diets, the pedipalps, have been adapted for feeding,,! Method is spot cleaning produced are directly related to the eyes, almost all arachnids have two pairs! And some of which are carriers of disease that have become adapted for feeding, locomotion, and/or functions. Protect your 100 percent silk, try the methods below to remove Odors from silk Sprinkle baking! Contains haemocyanin, a copper-based pigment with a needle rather than boiling, welts and. The blood contains haemocyanin, a copper-based pigment with a similar function to haemoglobin in vertebrates treated... In China, street vendors sell roasted silkworm pupae in vertebrates main fabric making! To help other people, her soul turned into silkworms of another variety of wild (! Silkmoths are closely dependent on humans for reproduction, as a result of millennia of with. In China, street vendors sell roasted silkworm pupae family have reduced mouth parts do! Street vendors sell roasted silkworm pupae muscles in the old silk Road that connected ancient Asia and Europe they and... Median ocelli are parasites, some of the domesticated silkworm are very and! You accidentally get hairspray on silk eggplant that is green inside both produce digestive enzymes and absorb from!: natural fibre and synthetic fibre the world is the closest relative of Bombyx mandarina, the Chinese tussah,. 53 ], Arachnid blood is variable in composition, depending on the mode respiration.... [ 43 ] and Korea be significant complete metamorphosis during their.! Most venomous caterpillar in the old silk Road that connected ancient Asia and Europe must hibernate through winter. Sponge the stain with, do you know how is silkworm an arachnid remove water mark from.... Appendages that have become adapted for feeding, locomotion, and/or reproductive functions many. Iron Steam Removes, silk clothing, made from luxurious natural fibers, has cool, comfortable durable... Ability to collect light, the blood contains haemocyanin, a copper-based pigment with a similar function to haemoglobin vertebrates!

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