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Aenigmachanna Gollum
''Aenigmachanna gollum'', the Gollum snakehead, is a species of aquifer-dwelling dragon snakehead fish that is endemic to the Indian state of Kerala. Description ''A. gollum'' has an elongated, eel-like body coloured mostly brown and beige. Its fins are long and transparent, with the dorsal fin stretching for about three-quarters of its body length, and the anal fin stretching for more than half its body length. Its pectoral fin is large, while the pelvic fin is absent. Its tailfin is ovoid. Several large scales cover the top of the head. It has a reduced swim bladder. Unlike many stygofauna - which usually have reduced colouring and have poor or no vision - ''A. gollum'' has well-developed pigmentation and normally-sized eyes. Due to its reduced swim bladder, ''A. gollum'' cannot remain buoyant in water. Like other snakehead fishes, it breathes air. It moves by undulating its fins, like an eel. Distribution and habitat ''A. gollum'' is known only from its type locality, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ralf Britz
Ralph (pronounced ; or ,) is a male given name of English, Scottish and Irish origin, derived from the Old English ''Rædwulf'' and Radulf, cognate with the Old Norse ''Raðulfr'' (''rað'' "counsel" and ''ulfr'' "wolf"). The most common forms are: * Ralph, the common variant form in English, which takes either of the given pronunciations. * Rafe, variant form which is less common; this spelling is always pronounced , as are all other English spellings without "l". * Raife, a very rare variant. * Raif, a very rare variant. Raif Rackstraw from H.M.S. Pinafore * Ralf, the traditional variant form in Dutch, German, Swedish, and Polish. * Ralfs, the traditional variant form in Latvian. * Raoul, the traditional variant form in French. * Raúl, the traditional variant form in Spanish. * Raul, the traditional variant form in Portuguese and Italian. * Raül, the traditional variant form in Catalan. * Rádhulbh, the traditional variant form in Irish. Given name Middle Ages * Ralp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stygofauna
Stygofauna are any fauna that live in groundwater systems or aquifers, such as caves, fissures and vugs. Stygofauna and troglofauna are the two types of subterranean fauna (based on life-history). Both are associated with subterranean environments – stygofauna are associated with water, and troglofauna with caves and spaces above the water table. Stygofauna can live within freshwater aquifers and within the pore spaces of limestone, calcrete or laterite, whilst larger animals can be found in cave waters and wells. Stygofaunal animals, like troglofauna, are divided into three groups based on their life history - stygophiles, stygoxenes, and stygobites. # Stygophiles inhabit both surface and subterranean aquatic environments, but are not necessarily restricted to either. # Stygoxenes are like stygophiles, except they are defined as accidental or occasional presence in subterranean waters. Stygophiles and stygoxenes may live for part of their lives in caves, but don't complete th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parachanna
''Parachanna'' is a genus of snakeheads native to freshwater habitats in tropical Africa. Three recognized extant (living) species are in this genus, but a phylogenetic study from 2017 indicates that a fourth, currently undescribed species also exists. One fossil species, ''Parachanna fayumensis'' Murray, 2006 dated to the Upper Eocene and Lower Oligocene is known from the Jebel Qatrani Formation of the Fayum Depression, Egypt. Species The three recognized extant species in this genus are: * ''Parachanna africana'' ( Steindachner, 1879) (African snakehead) * ''Parachanna insignis'' ( Sauvage, 1884) (brown snakehead) * ''Parachanna obscura The obscure snakehead, ''Parachanna obscura'', is a medium-sized carnivorous fish that has an elongated shape tapered on both ends and is covered in medium circular scales (cycloid). The head, resembling a snake, is long and depressed anteriorly ...'' ( Günther, 1861) (obscure snakehead) References * Freshwater fish genera Tax ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snakehead (fish)
The snakeheads are members of the freshwater perciform fish family Channidae, native to parts of Africa and Asia. These elongated, predatory fish are distinguished by their long dorsal fins, large mouths, and shiny teeth. They breathe air with gills, which allows them to migrate short distances over land. They have suprabranchial organs, which are primitive forms of labyrinth organs, that develop when they grow older. The two extant genera are ''Channa'' in Asia and ''Parachanna'' in Africa, consisting of more than 50 species. They are valuable as a food source and have become notorious as an intentionally released invasive species. These fish have been kept as pets but as they get larger, people let them go into ponds, lakes, and rivers, making these fish invasive. Description The various species of snakeheads differ greatly in size; dwarf snakeheads, such as ''Channa orientalis'', do not surpass in length. Most other snakeheads reach between . Five species ('' C. argus'', ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aenigmachanna Gollum Taxonomy
''Aenigmachanna'' is a genus of ray-finned fish in the order Ananbantiformes. It is the only genus in the family Aenigmachannidae, or dragon snakeheads. It contains two species, both of which are largely restricted to subterranean habitats in southwestern India, namely in the Western Ghats foothills in the state of Kerala. Both of the species in this genus display a unique array of traits that distinguish them from their closest living relatives, the true snakeheads in the family Channidae. These include a much longer and more slender body, numerous scales, a very long anal fin, and a lack of ability to maintain buoyancy. Molecular analyses indicate that they split off from Channidae around 34 or 109 MYA. This may indicate that Aenigmachannidae is a uniquely Gondwanan lineage, and if the higher end of estimations is correct, it may have survived the breakup of the Gondwanan supercontinent around 120 MYA. They are unique among cavefish for being one of the few cave-dwelling m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latin
Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the Roman Republic it became the dominant language in the Italian region and subsequently throughout the Roman Empire. Even after the fall of Western Rome, Latin remained the common language of international communication, science, scholarship and academia in Europe until well into the 18th century, when other regional vernaculars (including its own descendants, the Romance languages) supplanted it in common academic and political usage, and it eventually became a dead language in the modern linguistic definition. Latin is a highly inflected language, with three distinct genders (masculine, feminine, and neuter), six or seven noun cases (nominative, accusative, genitive, dative, ablative, and vocative), five declensions, four verb conjuga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enigma
Enigma may refer to: *Riddle, someone or something that is mysterious or puzzling Biology *ENIGMA, a class of gene in the LIM domain Computing and technology *Enigma (company), a New York-based data-technology startup * Enigma machine, a family of German electro-mechanical encryption machines *Enigma, the codename for Red Hat Linux 7.2 *Enigma (DVB), the second generation of Enigma software Film * ''Enigma'' (1982 film), a film starring Martin Sheen and Sam Neill * ''Enigma'' (2001 film), a film adapted from the Robert Harris novel * ''Enigma'' (2009 film), a short film by the Shumway Brothers Literature * ''Enigma'' (novel), a 1995 novel by Robert Harris *Enigma (DC Comics), a DC Comics character * Enigma (Marvel Comics), a Marvel Comics character * ''Enigma'' (Vertigo), a title published by DC's imprint Vertigo * ''Enigma'' (manga), a 2010 manga published in ''Weekly Shōnen Jump'' *''Enigma Cipher'', a series from Boom! Studios *''Enigma'', a novel in ''The Trigon Disunity'' s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Lord Of The Rings
''The Lord of the Rings'' is an epic high-fantasy novel by English author and scholar J. R. R. Tolkien. Set in Middle-earth, intended to be Earth at some time in the distant past, the story began as a sequel to Tolkien's 1937 children's book ''The Hobbit'', but eventually developed into a much larger work. Written in stages between 1937 and 1949, ''The Lord of the Rings'' is one of the best-selling books ever written, with over 150 million copies sold. The title refers to the story's main antagonist, the Dark Lord Sauron, who, in an earlier age, created the One Ring to rule the other Rings of Power given to Men, Dwarves, and Elves, in his campaign to conquer all of Middle-earth. From homely beginnings in the Shire, a hobbit land reminiscent of the English countryside, the story ranges across Middle-earth, following the quest to destroy the One Ring mainly through the eyes of the hobbits Frodo, Sam, Merry and Pippin. Although often called a trilogy, the work was intende ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Hobbit
''The Hobbit, or There and Back Again'' is a children's fantasy novel by English author J. R. R. Tolkien. It was published in 1937 to wide critical acclaim, being nominated for the Carnegie Medal and awarded a prize from the '' New York Herald Tribune'' for best juvenile fiction. The book remains popular and is recognized as a classic in children's literature. ''The Hobbit'' is set within Tolkien's fictional universe and follows the quest of home-loving Bilbo Baggins, the titular hobbit, to win a share of the treasure guarded by a dragon named Smaug. Bilbo's journey takes him from his light-hearted, rural surroundings into more sinister territory. The story is told in the form of an episodic quest, and most chapters introduce a specific creature or type of creature of Tolkien's geography. Bilbo gains a new level of maturity, competence, and wisdom by accepting the disreputable, romantic, fey, and adventurous sides of his nature and applying his wits and common s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gollum
Gollum is a fictional Tolkien's monsters, character in J. R. R. Tolkien's Middle-earth legendarium. He was introduced in the 1937 Fantasy (genre), fantasy novel ''The Hobbit'', and became important in its sequel, ''The Lord of the Rings''. Gollum was a Hobbit#Types, Stoor Hobbit of the River-folk who lived near the Gladden Fields. In ''The Lord of the Rings'' it is stated that he was originally known as Sméagol, corrupted by the One Ring, and later named Gollum after his habit of making "a horrible swallowing noise in his throat". Sméagol obtained the Ring by murdering his relative Déagol, who found it in the River Anduin. Gollum referred to the Ring as "my precious" or "precious", and it extended his life far beyond natural limits. Centuries of the Ring's influence twisted Gollum's body and mind, and, by the time of the novels, he "loved and hated [the Ring], as he loved and hated himself." Throughout the story, Gollum was torn between his lust for the Ring and his desire t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Table
The water table is the upper surface of the zone of saturation. The zone of saturation is where the pores and fractures of the ground are saturated with water. It can also be simply explained as the depth below which the ground is saturated. The water table is the surface where the water pressure head is equal to the atmospheric pressure (where gauge pressure = 0). It may be visualized as the "surface" of the subsurface materials that are saturated with groundwater in a given vicinity. The groundwater may be from precipitation or from groundwater flowing into the aquifer. In areas with sufficient precipitation, water infiltrates through pore spaces in the soil, passing through the unsaturated zone. At increasing depths, water fills in more of the pore spaces in the soils, until a zone of saturation is reached. Below the water table, in the phreatic zone (zone of saturation), layers of permeable rock that yield groundwater are called aquifers. In less permeable soils, such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Well
A well is an excavation or structure created in the ground by digging, driving, or drilling to access liquid resources, usually water. The oldest and most common kind of well is a water well, to access groundwater in underground aquifers. The well water is drawn up by a pump, or using containers, such as buckets or large water bags that are raised mechanically or by hand. Water can also be injected back into the aquifer through the well. Wells were first constructed at least eight thousand years ago and historically vary in construction from a simple scoop in the sediment of a dry watercourse to the qanats of Iran, and the stepwells and sakiehs of India. Placing a lining in the well shaft helps create stability, and linings of wood or wickerwork date back at least as far as the Iron Age. Wells have traditionally been sunk by hand digging, as is still the case in rural areas of the developing world. These wells are inexpensive and low-tech as they use mostly manual labour, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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