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Gasteracantha Fornicata
''Gasteracantha fornicata'' (northern jewelled spider) is a species of spiny orb-weavers (family Araneidae) found in Queensland Australia. It is similar in shape to ''Austracantha minax'' which was originally described as ''Gasteracantha minax''. It was described by Johan Christian Fabricius in 1775, the first Australian species of spider to be named and classified. One of the synonyms of the species is ''Gasteracantha vittata'', a name given to it by Ludwig Carl Christian Koch in 1871. However, it was later discovered that Fabricius had described the species earlier, and according to taxonomic rules, the earlier name has precedence and is the only one that should be used. Also, there are other species that were identified ''G. vittata'' at times, namely ''Gasteracantha irradiata'' (by Thorell, 1859), ''Gasteracantha sanguinolenta'' (by Keyserling, 1877) and ''Gasteracantha transversa'' (as subspecies ''G. v. longicornis'' by Strand, 1907), further complicating the i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queensland
) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_date = Colony of Queensland , established_title2 = Separation from New South Wales , established_date2 = 6 June 1859 , established_title3 = Federation , established_date3 = 1 January 1901 , named_for = Queen Victoria , demonym = , capital = Brisbane , largest_city = capital , coordinates = , admin_center_type = Administration , admin_center = 77 local government areas , leader_title1 = Monarch , leader_name1 = Charles III , leader_title2 = Governor , leader_name2 = Jeannette Young , leader_title3 = Premier , leader_name3 = Annastacia Palaszczuk ( ALP) , legislature = Parliament of Queensland , judiciary = Supreme Court of Queensland , national_representation = Parliament of Australia , national_representation_type ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spiders Of Australia
Australia has a number of highly venomous spiders, including the Sydney funnel-web spider, its relatives in the family Hexathelidae, and the redback spider, whose bites can be extremely painful and have historically been linked with deaths in medical records. Most Australian spiders do not have venom that is considered to be dangerously toxic. No deaths caused by spider bites in Australia have been substantiated by a coronial inquest since 1979. There are sensationalised news reports regarding Australian spiders that fail to cite evidence. ''A Field Guide to Spiders of Australia'' published by CSIRO Publishing in 2017 featuring around 836 species illustrated with photographs of live animals, around 381 genera and 78 families, introduced significant updates to taxonomy from Ramirez, Wheeler and Dmitrov Estimates put the total number of Australian spider species at about 10,000. Only around 3,600 have been described. Little information is known about many undiscovered species. New s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gasteracantha
''Gasteracantha'' is a genus of orb-weaver spiders first named by Carl Jakob Sundevall in 1833. Species of the genus are known as spiny-backed orb-weavers, spiny orb-weavers, or spiny spiders. The females of most species are brightly colored with six prominent spines on their broad, hardened, shell-like abdomens. The name ''Gasteracantha'' is derived from the Greek (), meaning "belly, abdomen", and (), meaning "thorn, spine". Spiny-backed orb-weavers are sometimes colloquially called "crab spiders" because of their shape, but they are not closely related to the true crab spiders. Other colloquial names for certain species include thorn spider, star spider, kite spider, or jewel spider. Members of the genus exhibit strong sexual dimorphism. Females are several times larger than males, which lack prominent spines or bright colors. ''Gasteracantha'' species are distributed worldwide in tropical and subtropical climates. The genus is most diverse in tropical Asia, from India t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daintree, Queensland
Daintree is a rural town and locality in the Shire of Douglas, Queensland, Australia. In the , Daintree had a population of 129 people. Geography Daintree is a settlement in North Queensland north of Cairns and from Port Douglas, Queensland. The McDowell Ranges are near the town while the Daintree River flows nearby. It takes its name from Richard Daintree, a pioneering geologist of British origin in North Queensland in the 1860s. It is within the local government area of Shire of Douglas (between 2008 and 2013, it was within the Cairns Region). At the 2006 census, Daintree and the surrounding area had a population of 78. History '' Kuku Yalanji'' (also known as ''Gugu Yalanji'', ''Kuku Yalaja'', and ''Kuku Yelandji'') is an Australian Aboriginal language of the Mossman and Daintree areas of North Queensland. The language region includes areas within the local government area of Shire of Douglas and Shire of Cook, particularly the localities of Mossman, Daintree, B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cooktown
Cooktown is a coastal town and locality in the Shire of Cook, Queensland, Australia. Cooktown is at the mouth of the Endeavour River, on Cape York Peninsula in Far North Queensland where James Cook beached his ship, the Endeavour, for repairs in 1770. Both the town and Mount Cook (431 metres or 1,415 feet) which rises up behind the town were named after James Cook. Cooktown is one of the few large towns in the Cape York Peninsula and was founded on 25 October 1873 as a supply port for the goldfields along the Palmer River.Pike (1979), p. 23.Holthouse, Hector (1967). ''River of Gold: The Wild Days of the Palmer River Gold Rush''. Angus & Robertson. Reprint 2002. HarperCollins ''Publishers'', Australia. ; pp. 27–28. It was called "Cook's Town" until 1 June 1874.Pike (1979), p. 26. In the the locality of Cooktown had a population of 2,631 people. Geography Cooktown is located about north of Brisbane and north of Cairns, by road. Cooktown is about south of Cape York by ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
First Voyage Of James Cook
The first voyage of James Cook was a combined Royal Navy and Royal Society expedition to the south Pacific Ocean aboard HMS ''Endeavour'', from 1768 to 1771. It was the first of three Pacific voyages of which James Cook was the commander. The aims of this first expedition were to observe the 1769 transit of Venus across the Sun (3–4 June that year), and to seek evidence of the postulated ''Terra Australis Incognita'' or "undiscovered southern land". The voyage was commissioned by King George III and commanded by Lieutenant Cook, a junior naval officer with good skills in cartography and mathematics. Departing from Plymouth Dockyard in August 1768, the expedition crossed the Atlantic, rounded Cape Horn and reached Tahiti in time to observe the transit of Venus. Cook then set sail into the largely uncharted ocean to the south, stopping at the Pacific islands of Huahine, Borabora and Raiatea to claim them for Great Britain. In October 1769 the expedition reached New Zealand, be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ommochrome
Ommochrome (or visual pigment) refers to several biological pigments that occur in the eyes of crustaceans and insects. The eye color is determined by the ommochromes. Ommochromes are also found in the chromatophores of cephalopods, and in spiders. Ommochromes are metabolites of tryptophan, via kynurenine and 3-hydroxykynurenine. They are responsible for a wide variety of colors, ranging from yellow over red and brown to black. Lighter colors tend to be generated by ommatins, while mixtures of ommatin and ommins are responsible for darker colors. In spiders, ommochromes are usually deposited as pigment granules within the cells of the hypodermis, immediately beneath the cuticle. A study on various insects showed that ommochromes in their eyes have high antioxidant activity. The ommochromes were found to have the ability to suppress the Maillard reaction. See also * Opsin Animal opsins are G-protein-coupled receptors and a group of proteins made light-sensitive via a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sceliphron Laetum
''Sceliphron laetum'' is a wasp in the family Sphecidae, the mud-dauber wasps. Like other members of this genus, it is a solitary species and builds cells out of mud in which to rear its young, provisioning them with paralysed spiders, and laying an egg in each. This wasp is native to Australia and southeastern Asia. Description Like other members of the family Specidae, the first abdominal segment of ''S. laetum'' has been modified into an elongated, slender petiole. This wasp is long and is largely black, with bold yellow markings. It has membranous wings which fold over the body when at rest. Its head is clad with yellow hairs which thin out ventrally. It lacks an area of bare yellow skin on the lower part of the face which is present in the otherwise similar ''Sceliphron formosum''. The thorax has one or more yellow patches dorsally between the wings. The hind tip of the thorax, the petiole and the front part of the gaster are yellow, the bulbous central portion of the gas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human
Humans (''Homo sapiens'') are the most abundant and widespread species of primate, characterized by bipedalism and exceptional cognitive skills due to a large and complex brain. This has enabled the development of advanced tools, culture, and language. Humans are highly social and tend to live in complex social structures composed of many cooperating and competing groups, from families and kinship networks to political states. Social interactions between humans have established a wide variety of values, social norms, and rituals, which bolster human society. Its intelligence and its desire to understand and influence the environment and to explain and manipulate phenomena have motivated humanity's development of science, philosophy, mythology, religion, and other fields of study. Although some scientists equate the term ''humans'' with all members of the genus ''Homo'', in common usage, it generally refers to ''Homo sapiens'', the only extant member. Anatomically moder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexual Dimorphism
Sexual dimorphism is the condition where the sexes of the same animal and/or plant species exhibit different morphological characteristics, particularly characteristics not directly involved in reproduction. The condition occurs in most animals and some plants. Differences may include secondary sex characteristics, size, weight, colour, markings, or behavioural or cognitive traits. These differences may be subtle or exaggerated and may be subjected to sexual selection and natural selection. The opposite of dimorphism is ''monomorphism'', which is when both biological sexes are phenotypically indistinguishable from each other. Overview Ornamentation and coloration Common and easily identified types of dimorphism consist of ornamentation and coloration, though not always apparent. A difference in coloration of sexes within a given species is called sexual dichromatism, which is commonly seen in many species of birds and reptiles. Sexual selection leads to the exaggerated dim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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