|
Mammals Of Russia
This is a list of the mammal species recorded in Russia. There are 266 mammal species in Russia, of which five are critically endangered, thirteen are endangered, twenty-six are vulnerable, and six are near threatened. One of the species listed for Russia is extinct and one can no longer be found in the wild. All the mammals of Russia are in the subclass Theria and infraclass Eutheria, being all Placentalia, placental. The following tags are used to highlight each species' conservation status as assessed by the International Union for Conservation of Nature: Order: Rodentia (rodents) Rodents make up the largest order of mammals, with over 40% of mammalian species. They have two incisors in the upper and lower jaw which grow continually and must be kept short by gnawing. Most rodents are small though the capybara can weigh up to . *Suborder: Hystricognathi **Family: Hystricidae (Old World porcupines) ***Genus: ''Hystrix (porcupine), Hystrix'' ****Indian crested porcupin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medved Mzoo
Medved (Russian: медведь) means ''bear'' in several Slavic languages, including Slovenian, Russian, Czech, Serbian and Slovak. It may refer to: * Medved (surname) * Medved (rural locality), several rural localities in Novgorod Oblast, Russia * Medved (hunting rifle), a Soviet hunting rifle * Medved, an iconic bear in the Internet meme Preved See also * {{Disambiguation, geo, surname Slavic words and phrases ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apodemus
''Apodemus'' is a genus of Muridae, murid (true mice and rats) containing the field mice as well as other well-known species like the wood mouse and the yellow-necked mouse. The name is unrelated to that of the ''Mus (genus), Mus'' genus, instead being derived from the Greek ἀπό-δημος (literally ''away from home''). Taxonomy Related to the Ryūkyū spiny rats (''Tokudaia'') and the prehistoric ''Rhagamys'' – and far more distantly to ''Mus (genus), Mus'' and ''Malacomys'' – it includes these species: ''Apodemus sensu stricto'' * Striped field mouse, ''A. agrarius'' * Small Japanese field mouse, ''A. argenteus'' * Chevrier's field mouse, ''A. chevrieri'' ''Alsomys'' * South China field mouse, ''A. draco'' * Himalayan field mouse, ''A. gurkha'' * Sichuan field mouse, ''A. latronum'' * Korean field mouse, ''A. peninsulae'' * Taiwan field mouse, ''A. semotus'' * Large Japanese field mouse, ''A. speciosus'' ''Sylvaemus'' * Alpine field mouse, ''A. alpicola'' * Y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sciurinae
Sciurinae () is a subfamily of squirrels (in the family Sciuridae), uniting the flying squirrels with certain related tree squirrels. Older sources place the flying squirrels in a separate subfamily (Pteromyinae) and unite all remaining sciurids into the subfamily Sciurinae, but this has been strongly refuted by genetic studies. Classification Subfamily SciurinaeThorington, R. W. and R. S. Hoffmann. 2005. "Family Sciuridae". pp. 754–818 in ''Mammal Species of the World A Taxonomic and Geographic Reference''. Johns Hopkins University Press, Baltimore. ''Walker's Mammals of the World'' 5th edition Volume 1 *Tribe Sciurini **Genus ''Microsciurus'' – American dwarf squirrels *** Central American dwarf squirrel, ''M. alfari'' *** Amazon dwarf squirrel, ''M. flaviventer'' *** Western dwarf squirrel, ''M. mimulus'' *** Santander dwarf squirrel, ''M. santanderensis'' **Genus '' Rheithrosciurus'' *** Tufted ground squirrel, ''R. macrotis'' **Genus ''Sciurus'' ***Subgenus ''Sciurus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sciuridae
Squirrels are members of the family Sciuridae (), a family that includes small or medium-sized rodents. The squirrel family includes tree squirrels, ground squirrels (including chipmunks and prairie dogs, among others), and flying squirrels. Squirrels are indigenous to the Americas, Eurasia, and Africa, and were introduced by humans to Australia. The earliest known fossilized squirrels date from the Eocene epoch, and among other living rodent families, the squirrels are most closely related to the mountain beaver and dormice. Etymology The word ''squirrel'', first attested in 1327, comes from the Anglo-Norman which is from the Old French , the reflex of a Latin language">Latin word , which was taken from the Ancient Greek word (; from ) 'shadow-tailed', referring to the long bushy tail which many of its members have. ''Sciurus'' is also the name of one of its genuses. The native Old English language, Old English word for the squirrel, , only survived into Middle Eng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurasian Beaver
The Eurasian beaver (''Castor fiber'') or European beaver is a species of beaver widespread across Eurasia, with a rapidly increasing population of at least 1.5 million in 2020. The Eurasian beaver was hunted to near-extinction for both its fur and castoreum, with only about 1,200 beavers in eight Relict (biology), relict populations from France to Mongolia in the early 20th century. It has since been Eurasian beaver reintroduction, reintroduced into much of its former range and now lives from Western Europe, Western, Southern Europe, Southern, Central Europe, Central and Eastern Europe, Scandinavia, Russia through China and Mongolia, with about half the population in Russia. It is listed as least concern on the IUCN Red List. Taxonomy ''Castor fiber'' was the scientific name used by Carl Linnaeus in 1758, who described the beaver in his work ''Systema Naturae''. Between 1792 and 1997, several Eurasian beaver zoological specimens were described and proposed as subspecies, includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North American Beaver
The North American beaver (''Castor canadensis'') is one of two Extant taxon, extant beaver species, along with the Eurasian beaver (''Castor fiber''). It is native to North America and has been introduced in South America (Patagonia) and Europe (primarily Finland and Karelia). The North American beaver is one of the national symbols of Canada and the official state mammal of Oregon and New York (state), New York. North American (Canadian) beavers are widespread across the continental United States, Canada, southern Alaska, and some parts of northern Mexico. In Canada and the United States, the North American beaver is often referred to simply as "beaver", although this can cause some confusion because another distantly related rodent, ''Aplodontia rufa'', is often called the "mountain beaver". Other vernacular names, including American beaver and Canadian beaver, distinguish this species from the other Extant taxon, extant beaver species, ''Eurasian beaver, Castor fiber'', which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Castor (genus)
Castor most commonly refers to: *Castor (star), a star in the Gemini constellation *Castor, one of the Dioscuri/Gemini twins Castor and Pollux in Greco-Roman mythology Castor or CASTOR may also refer to: Science and technology * Castor (rocket stage), a family of solid-fuel rocket stages * Castor (software), data binding framework for Java * ''CASTOR'' (nuclear waste), cask for storage and transport of radioactive material * ''CASTOR'' experiment, "Centauro and Strange Object Research" at CERN * CASTOR (spacecraft), proposed space telescope * Castor sugar, fine sugar * Caster (or Castor), an undriven wheel * Caster (or Castor) angle, relevant to a steered wheel Biology * Castor oil plant, plant from which castor bean grows **Castor oil, oil of the castor bean ** Castor wax, produced from castor oil *''Castor'', a genus name of the beaver **Castoreum, natural scent derived from the beaver People Given name Ancient *Castor of Rhodes, Greek grammarian and rhetorician *Drusus the Y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Castoridae
Castoridae is a family of rodents that contains the two living species of beavers and their fossil relatives. A formerly diverse group, only a single genus is extant today, ''beaver, Castor.'' Two other genera of "giant beavers", ''Castoroides'' and ''Trogontherium,'' became extinct in the Late Pleistocene. Characteristics Castorids are medium-sized mammals, although large compared with most other rodents. They are semiaquatic, with sleek bodies and webbed hind feet, and are more agile in the water than on land. Their tails are flattened and scaly, adaptations that help them manoeuvre in the water. Castorids live in small family groups that each occupy a specific territory, based around a lodge and dam constructed from sticks and mud. They are herbivores, feeding on leaves and grasses in the summer, and woody plants such as willow in the winter. They have powerful incisors and the typical rodent dentition, dental formula: Evolution The earliest castorids belong to the ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sciurognathi
Sciurognathi is a suborder of rodents that includes squirrels, chipmunks, beavers, and many types of mice. The group is characterized by a specific shape to the lower jaw. In sciurognaths, the angular process of the jaw is in the same plane as the root of the incisors. This is in contrast to the suborder Hystricognathi where the angular process is outside the plane formed at the root of the incisor due to the presence of a shelf for muscle attachment. The sciurognathous condition is considered to be the primitive condition in rodents, and is therefore not a good character for cladistic analysis. Although hystricognaths are almost universally accepted as representing a real evolutionary grouping, most researchers do not consider Sciurognathi as an equally valid group. In particular, gundis are thought to be more closely related to the hystricognathous rodents than to other sciurognaths. In spite of this, most texts continue to use these two suborders due primarily to a lack ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian Crested Porcupine
The Indian crested porcupine (''Hystrix indica'') is a hystricomorph rodent species native to southern Asia and the Middle East. It is listed as Least Concern on the IUCN Red List. It belongs to the Old World porcupine family, Hystricidae. Description The Indian crested porcupine is a large rodent, weighing . The body (from nose to base of the tail) measures between with the tail adding an additional . The lifespan of Indian crested porcupines in the wild is unknown, however, the oldest known Indian crested porcupine in captivity was female; and lived up to be 27.1 years old. It is covered in multiple layers of modified hair called quills, with longer, thinner quills covering a layer of shorter, thicker ones. The quills are brown or black with alternating white and black bands. They are made of keratin and are relatively flexible. Each quill is connected to a muscle at its base, allowing the porcupine to raise its quills when it feels threatened. The longest quills are locat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hystrix (porcupine)
''Hystrix'' is a genus of porcupines containing most of the Old World porcupines. Fossils belonging to the genus date back to the late Miocene of Africa. Hystrix (from Ancient Greek ὕστριξ (hústrix, “porcupine”) was given name by the 18th-century Swedish botanist Carl Linnaeus Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming o .... Species * Genus ''Hystrix'' **Subgenus ''Hystrix'' ***'' Hystrix africaeaustralis'' - Cape porcupine ***'' Hystrix cristata'' - African crested porcupine ***'' Hystrix indica'' - Indian crested porcupine **Subgenus ''Acanthion'' ***'' Hystrix brachyura'' - Malayan porcupine or Himalayan crestless porcupine ***'' Hystrix javanica'' - Sunda porcupine **Subgenus ''Thecurus'' ***'' Hystrix crassispinis'' - thick-spined porcupine ***'' Hystrix pumil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
