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Japanese Raccoon Dog
The Japanese raccoon dog (''Nyctereutes viverrinus'', or ''tanuki'' ()) is a species of canid that is endemic to Japan. It is one of two species in the genus '' Nyctereutes'', alongside the common raccoon dog (''N. procyonoides''), of which it is considered to be a subspecies by some taxonomic authorities. Japanese raccoon dogs have had a significant role in Japanese folklore since ancient times. They are reputedly mischievous and jolly, masters of disguise and shapeshifting, but somewhat gullible and absent-minded. The animals are common in Japanese art, particularly as statues. Description The Japanese raccoon dog has a smaller stomach and shorter fur of lesser insulation value than mainland raccoon dogs. A white color type is rare. In mainland Japan, oculocutaneous albinism is caused by a mutation in the third and fifth exon of the TYR nucleotide sequence, which is responsible for melanin pigmentation. Behavior The Japanese raccoon dog is mainly nocturnal. It vocali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Mythology
Japanese mythology is a collection of traditional stories, folktales, and beliefs that emerged in the islands of the Japanese archipelago. Shinto traditions are the cornerstones of Japanese mythology. The history of thousands of years of contact with Chinese and various Indian myths (such as Buddhist and Hindu mythology) are also key influences in Japanese religious belief. Japanese myths are tied to the topography of the archipelago as well as agriculturally-based folk religion, and the Shinto pantheon holds uncountable ''kami'' (" god(s)" or "spirits"). Two important sources for Japanese myths, as they are recognized today, are the and the . The , or "Record of Ancient Matters," is the oldest surviving account of Japan's myths, legends, and history. Additionally, the ''Shintōshū'' describes the origins of Japanese deities from a Buddhist perspective. One notable feature of Japanese mythology is its explanation of the origin of the Imperial Family, which has been used h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tanuki01 960
''Tanuki'' may refer to: * ''Tanuki'', the Japanese word for the Japanese raccoon dog, a species of canid mammal * ''Tanuki'', a deadwood bonsai technique See also * ''Bake-danuki ''Bake-danuki'' () are a kind of ''yōkai'' (supernatural beings) found in the classics and in the folklore and legends of various places in Japan, commonly associated with the Japanese raccoon dog or ''tanuki''. Although the tanuki is a real, ...'', a type of spirit in Japanese mythology that appears in the form of the Japanese raccoon dog * Tanooki Suit, a raccoon-tailed power-up in the ''Super Mario'' video game series {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speciation
Speciation is the evolutionary process by which populations evolve to become distinct species. The biologist Orator F. Cook coined the term in 1906 for cladogenesis, the splitting of lineages, as opposed to anagenesis, phyletic evolution within lineages. Charles Darwin was the first to describe the role of natural selection in speciation in his 1859 book ''On the Origin of Species''. He also identified sexual selection as a likely mechanism, but found it problematic. There are four geographic modes of speciation in nature, based on the extent to which speciating populations are isolated from one another: allopatric speciation, allopatric, peripatric speciation, peripatric, parapatric speciation, parapatric, and sympatric speciation, sympatric. Whether genetic drift is a minor or major contributor to speciation is the subject of much ongoing discussion. Rapid sympatric speciation can take place through polyploidy, such as by doubling of chromosome number; the result is progeny wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karyotype
A karyotype is the general appearance of the complete set of chromosomes in the cells of a species or in an individual organism, mainly including their sizes, numbers, and shapes. Karyotyping is the process by which a karyotype is discerned by determining the chromosome complement of an individual, including the number of chromosomes and any abnormalities. A karyogram or idiogram is a graphical depiction of a karyotype, wherein chromosomes are generally organized in pairs, ordered by size and position of centromere for chromosomes of the same size. Karyotyping generally combines light microscopy and photography in the metaphase of the cell cycle, and results in a photomicrographic (or simply micrographic) karyogram. In contrast, a schematic karyogram is a designed graphic representation of a karyotype. In schematic karyograms, just one of the sister chromatids of each chromosome is generally shown for brevity, and in reality they are generally so close together that they look as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammal Species Of The World
''Mammal Species of the World: A Taxonomic and Geographic Reference'' is a standard reference work in mammalogy giving descriptions and Bibliographic database, bibliographic data for the known species of mammals. It is now in its third edition, published in late 2005, which was edited by Don E. Wilson and DeeAnn M. Reeder. An online version is hosted by Bucknell University, from which the names of the species can be downloaded as a custom dictionary. A partial online version is available at Google Books (see "External links" below). The Checklist Committee is charged with compiling and updating MSW. In its Annual Report for 2015, the Committee noted that it is under contract with Johns Hopkins Press for the 4th edition of MSW, which will be edited by DeeAnn M. Reeder and Kristofer M. Helgen. The database has been made editable for the authors, leading to more frequent website updates. The publication was scheduled for release in 2017, and then deferred until 2019. References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN Species Survival Commission
The IUCN Species Survival Commission (IUCN SSC) is one of the six commissions of the International Union for Conservation of Nature (IUCN). The Species Survival Commission, the largest of the IUCN's six commissions, is a science-driven network consisting of 9,000 volunteer experts working in more than 160 Specialist Groups, including 17 invertebrate groups, Red List Authorities, and Task Forces. The IUCN Species Strategic Plan outlines conservation priorities, with the current plan covering the period from 2021 to 2025. Since 2016, Jon Paul Rodríguez is the chair of the commission. Specialist Groups SSC Specialist Groups are primarily taxon-specific volunteer organizations made up mostly of research biologists and natural historians. Some groups focus on conservation issues specific to certain plants, animals, and fungi, while others work on broader goals like species reintroduction into former habitats, addressing climate change, wildlife health, and promoting sustainable us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Union For Conservation Of Nature
The International Union for Conservation of Nature (IUCN) is an international organization working in the field of nature conservation and sustainable use of natural resources. Founded in 1948, IUCN has become the global authority on the status of the natural world and the measures needed to safeguard it. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice and through building partners ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Society Of Mammalogists
The American Society of Mammalogists (ASM) was founded in 1919. Its primary purpose is to encourage the study of mammal A mammal () is a vertebrate animal of the Class (biology), class Mammalia (). Mammals are characterised by the presence of milk-producing mammary glands for feeding their young, a broad neocortex region of the brain, fur or hair, and three ...s, and professions studying them. There are over 4,500 members of this society, and they are primarily professional scientists who emphasize the importance of public policy and education. There are several ASM meetings held each year, and the society manages several publications such as the '' Journal of Mammalogy'', ''Special Publications'', '' Mammalian Species'', and ''Society Pamphlets''. The best known of these is the ''Journal of Mammalogy''. The ASM also maintains ''The Mammal Image Library'' which contains more than 1,300 mammal slides. A president, vice president, recording secretary, secretary-treasurer, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robertsonian Translocation
Robertsonian translocation (ROB) is a Chromosome abnormality, chromosomal abnormality where the entire long arms of two different chromosome, chromosomes become fused to each other. It is the most common form of chromosomal translocation in humans, affecting 1 out of every 1,000 babies born. It does not usually cause medical problems, though some people may produce Gamete, gametes with an incorrect number of chromosomes, resulting in a risk of miscarriage. In rare cases this Chromosomal translocation, translocation results in Down syndrome and Patau syndrome. Robertsonian translocations result in a reduction in the number of chromosomes. A Robertsonian evolutionary fusion, which may have occurred in the common ancestor of humans and other great apes, is the reason humans have 46 chromosomes while all other primates have 48. Detailed DNA studies of chimpanzee, orangutan, gorilla and bonobo apes has determined that where human chromosome 2 is present in our DNA in all four great ape ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isolation Species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour, or ecological niche. In addition, palaeontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. About 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomen". The first part of a binomen is the name of a genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes in zoological nomenclature). For exam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MtDNA
Mitochondrial DNA (mtDNA and mDNA) is the DNA located in the mitochondria organelles in a eukaryotic cell that converts chemical energy from food into adenosine triphosphate (ATP). Mitochondrial DNA is a small portion of the DNA contained in a eukaryotic cell; most of the DNA is in the cell nucleus, and, in plants and algae, the DNA also is found in plastids, such as chloroplasts. Mitochondrial DNA is responsible for coding of 13 essential subunits of the complex oxidative phosphorylation (OXPHOS) system which has a role in cellular energy conversion. Human mitochondrial DNA was the first significant part of the human genome to be sequenced. This sequencing revealed that human mtDNA has 16,569 base pairs and encodes 13 proteins. As in other vertebrates, the human mitochondrial genetic code differs slightly from nuclear DNA. Since animal mtDNA evolves faster than nuclear genetic markers, it represents a mainstay of phylogenetics and evolutionary biology. It also permits tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morphology (biology)
Morphology (from Ancient Greek μορφή (morphḗ) "form", and λόγος (lógos) "word, study, research") is the study of the form and structure of organisms and their specific structural features. This includes aspects of the outward appearance (shape, structure, color, pattern, size), as well as the form and structure of internal parts like bones and organs, i.e., anatomy. This is in contrast to physiology, which deals primarily with function. Morphology is a branch of life science dealing with the study of the overall structure of an organism or taxon and its component parts. History The etymology of the word "morphology" is from the Ancient Greek (), meaning "form", and (), meaning "word, study, research". While the concept of form in biology, opposed to function, dates back to Aristotle (see Aristotle's biology), the field of morphology was developed by Johann Wolfgang von Goethe (1790) and independently by the German anatomist and physiologist Karl Fried ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
