Onychodactylus Fischeri
''Onychodactylus fischeri'' is a lungless salamander found in Northeast Asia. It ranges through northeastern China, the Russian Far East, and the Korean Peninsula, but is only sporadically distributed within this range. Within South Korea, it is found chiefly in the high mountain valleys of Gangwon province, including the Gwangdeoksan and Daeseongsan regions. The adults feed on spiders, grubs, and insects. Common names include Fischer's clawed salamander and long-tailed clawed salamander. It has 78 chromosomes in total (27 pairs of microchromosome A microchromosome (μChr) is a type of very small chromosome which is a typical component of the karyotype of birds, some reptiles, fish, and amphibians; they have yet to be found in mammals. They are less than 20 Mb in size; chromosomes which a ...s, six pairs of medium-sized chromosomes, and six pairs of large chromosomes). ''Onychodactylus fischeri'' is known to live at elevations up to 1000 m, and favors thickly-vege ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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George Albert Boulenger
George Albert Boulenger (19 October 1858 – 23 November 1937) was a Belgian-British zoologist who described and gave scientific names to over 2,000 new animal species, chiefly fish, reptiles, and amphibians. Boulenger was also an active botanist during the last 30 years of his life, especially in the study of roses. Life Boulenger was born in Brussels, Belgium, the only son of Gustave Boulenger, a Belgian public notary, and Juliette Piérart, from Valenciennes. He graduated in 1876 from the Free University of Brussels with a degree in natural sciences, and worked for a while at the Royal Belgian Institute of Natural Sciences, Brussels, as an assistant naturalist studying amphibians, reptiles, and fishes. He also made frequent visits during this time to the '' Muséum national d'Histoire naturelle'' in Paris and the British Museum in London. In 1880, he was invited to work at the Natural History Museum, then a department of the British Museum, by Dr. Albert C. L. G. Gün ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Northeast Asia
Northeast Asia or Northeastern Asia is a geographical subregion of Asia; its northeastern landmass and islands are bounded by the Pacific Ocean. The term Northeast Asia was popularized during the 1930s by American historian and political scientist Robert Kerner. Under Kerner's definition, "Northeast Asia" included the Mongolian Plateau, the Northeast China Plain, the Korean Peninsula, the Japanese archipelago, and the mountainous regions of the Russian Far East, stretching from the Lena River in the west to the Pacific Ocean in the east. Definitions The definition of Northeast Asia is not static but often changes according to the context in which it is discussed. In common usage, the term Northeast Asia typically refers to a region which includes Northeast China (Inner Mongolia and Manchuria). Other countries and territories which make up Northeast Asia are the Russian Far East including the Sea of Okhotsk, Mongolia, Japan, North Korea, and South Korea. Parts or the whole ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Russian Far East
The Russian Far East (russian: Дальний Восток России, r=Dal'niy Vostok Rossii, p=ˈdalʲnʲɪj vɐˈstok rɐˈsʲiɪ) is a region in Northeast Asia. It is the easternmost part of Russia and the Asian continent; and is administered as part of the Far Eastern Federal District, which is located between Lake Baikal in eastern Siberia and the Pacific Ocean. The area's largest city is Khabarovsk, followed by Vladivostok. The region shares land borders with the countries of Mongolia, China, and North Korea to its south, as well as maritime boundaries with Japan to its southeast, and with the United States along the Bering Strait to its northeast. The Russian Far East is often considered as a part of Siberia (previously during the Soviet era when it was called the Soviet Far East). Terminology In Russia, the region is usually referred to as just "Far East" (). What is known in English as the Far East is usually referred to as "the Asia-Pacific Region" (, abb ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Korean Peninsula
Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has been divided at or near the 38th parallel, with North Korea (Democratic People's Republic of Korea) comprising its northern half and South Korea (Republic of Korea) comprising its southern half. Korea consists of the Korean Peninsula, Jeju Island, and several minor islands near the peninsula. The peninsula is bordered by China to the northwest and Russia to the northeast. It is separated from Japan to the east by the Korea Strait and the Sea of Japan (East Sea). During the first half of the 1st millennium, Korea was divided between three states, Goguryeo, Baekje, and Silla, together known as the Three Kingdoms of Korea. In the second half of the 1st millennium, Silla defeated and conquered Baekje and Goguryeo, leading to the " Unified Silla" period. Meanwhile, Balhae formed in the north, superseding former Goguryeo. Unified Silla eventually collapsed into three separate states due to ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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South Korea
South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korea, Korean Peninsula and sharing a Korean Demilitarized Zone, land border with North Korea. Its western border is formed by the Yellow Sea, while its eastern border is defined by the Sea of Japan. South Korea claims to be the sole legitimate government of the entire peninsula and List of islands of South Korea, adjacent islands. It has a Demographics of South Korea, population of 51.75 million, of which roughly half live in the Seoul Capital Area, the List of metropolitan areas by population, fourth most populous metropolitan area in the world. Other major cities include Incheon, Busan, and Daegu. The Korean Peninsula was inhabited as early as the Lower Paleolithic period. Its Gojoseon, first kingdom was noted in Chinese records in the early 7th century BCE. Following the unification of the Three Kingdoms of Korea into Unified Silla, Silla and Balhae in the ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Gangwon-do (South Korea)
Gangwon Province is a province of South Korea, with its capital at Chuncheon. It is bound on the east by the Sea of Japan, and borders Gyeonggi Province to its west, North Gyeongsang Province and North Chungcheong Province to its south, and the Military Demarcation Line to the north, separating it from North Korea's Kangwŏn Province. Before the division of Korea in 1945 Gangwon and Kangwŏn Provinces formed a single province. Pyeongchang County in Gangwon hosted the 2018 Winter Olympics and 2018 Winter Paralympics, with Gangwon hosting the 2024 Winter Youth Olympics. History Gangwon-do was one of the Eight Provinces of Korea during the Joseon Dynasty, formed in 1395, deriving its name from the names of the principal cities of Gangneung () and the provincial capital Wonju (). In 1895 Gangwon-do was replaced by the Districts of Chuncheon (''Chuncheon-bu;'' ) in the west and Gangneung (''Gangneung-bu;'' ) in the east, with Wonju becoming a part of Chungju Distric ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Gwangdeoksan (Gangwon-do/Gyeonggi-do)
Gwangdeoksan () is a mountain on the boundary between the provinces of Gangwon-do and Gyeonggi-do in South Korea. Its area extends across the city of Pocheon and the counties of Hwacheon and Cheorwon. Gwangdeoksan has an elevation of .Yu 2007, p.32. See also * List of mountains in Korea The following is a list of mountains in Korea: List of mountains in North Korea Pyeongyang * Taesongsan (대성산; ) – Chagang Province * Namsan (남산; ) – * Obongsan (오봉산; ) – North Pyongan Province * Myohyangsan (묘향� ... Notes References * Mountains of Gangwon Province, South Korea Hwacheon County Cheorwon County Mountains of Gyeonggi Province Pocheon Mountains of South Korea One-thousanders of South Korea {{SouthKorea-geo-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Daeseongsan (Gangwon)
Daeseongsan (Gangwon-do) is a mountain of South Korea. It has an altitude of 1175 metres See also *List of mountains of Korea The following is a list of mountain A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limit ... References Mountains of Gangwon Province, South Korea Hwacheon County Cheorwon County Mountains of South Korea {{SouthKorea-geo-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Microchromosome
A microchromosome (μChr) is a type of very small chromosome which is a typical component of the karyotype of birds, some reptiles, fish, and amphibians; they have yet to be found in mammals. They are less than 20 Mb in size; chromosomes which are greater than 40 Mb in size are known as macrochromosomes (MChrs), while those between 20 and 40 Mb are classified as intermediate chromosomes. Microchromosomes are characteristically very small and often cytogenetically indistinguishable in a karyotype. While originally thought to be insignificant fragments of chromosomes, in species where they have been studied they have been found to be rich in genes and high in GC content. In chickens, microchromosomes have been estimated to contain between 50 and 75% of all genes. The presence of microchromosomes makes ordering and identifying chromosomes into a coherent karyotype particularly difficult. During metaphase, they appear merely as 0.5-1.5 μm long specks. Their small size and poor ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Onychodactylus
The genus ''Onychodactylus'', commonly known as clawed salamanders, is composed of three species, all endemic to eastern Asia. ''O. fischeri'' is found on the Korean peninsula, as well as in the Russian Far East and adjacent regions of China. ''O. japonicus'' is found in Japan, on the islands of Shikoku and Honshū. All species are lungless with moderately developed parotoid gland The parotoid gland (alternatively, paratoid gland) is an external skin gland on the back, neck, and shoulder of toads and some frogs and salamanders. It can secrete a number of milky alkaloid substances (depending on the species) known collective ...s. They inhabit moist, forested mountains near small rivers, streams, and lakes. Adults of each species can reach a length of 19 cm. Species Species recognized as of October 2019: References External links * eb application 2010. Berkeley, California''Onychodactylus'' AmphibiaWeb, available at http://amphibiaweb.org/. (Accessed: November 20, 2010 ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Amphibians Described In 1886
Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramatic dec ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Amphibians Of China
China's geography of China, vast and diverse landscape is home to a profound variety and abundance of wildlife. As of one of 17 megadiverse countries in the world, China has, according to one measure, 7,516 species of vertebrates including 4,936 fish, 1,269 bird, 562 List of mammals of China, mammal, 403 reptile and 346 amphibian species. In terms of the number of species, China ranks third in the world in mammals,IUCN Initiatives – Mammals – Analysis of Data – Geographic Patterns 2012 IUCN. Retrieved 24 April 2013. Data does not include species in Taiwan. eighth in birds, seventh in reptiles and seventh in amphibians. [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |