|
Gray Marmot
The gray marmot, grey marmot, or Altai marmot (''Marmota baibacina'') is a species of rodent in the squirrel family Sciuridae. It is one of the larger marmots in the genus Marmota. It occurs in mountainous grasslands and shrub lands of central Asia, and is one of the 9 Palearctic (Eurasia) species. It is found in Xinjiang Province in China, southeastern Kazakhstan, Kyrgyzstan, Mongolia, and in the Altai and Tien Shan Mountains in southeastern Siberia in Russia. In the Mongolian Altai, its range overlaps with that of the Tarbagan marmot. Gray marmots form social groups, live in burrows, and hibernate. Description Gray marmots are one of the largest palearctic species, weighing , with some individuals reaching near before hibernation. Body size varies based on the time of year (before/after hibernation), and with latitude and elevation. Overall, body size increases at higher latitude and elevation and decreases at lower latitudes and elevation. Gray marmots may lose up to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodent
Rodents (from Latin , 'to gnaw') are mammals of the Order (biology), order Rodentia ( ), which are characterized by a single pair of continuously growing incisors in each of the upper and Mandible, lower jaws. About 40% of all mammal species are rodents. They are native to all major land masses except for Antarctica, and several oceanic islands, though they have subsequently been introduced to most of these land masses by human activity. Rodents are extremely diverse in their ecology and lifestyles and can be found in almost every terrestrial habitat, including human-made environments. Species can be arboreal, fossorial (burrowing), saltatorial/ricochetal (leaping on their hind legs), or semiaquatic. However, all rodents share several morphological features, including having only a single upper and lower pair of ever-growing incisors. Well-known rodents include Mouse, mice, rats, squirrels, prairie dogs, porcupines, beavers, Cavia, guinea pigs, and hamsters. Once included wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarbagan Marmot
The tarbagan marmot (''Marmota sibirica'') is a species of rodent in the family Sciuridae. It is found in China (Inner Mongolia and Heilongjiang), northern and western Mongolia, and Russia (southwest Siberia, Tuva, Transbaikalia). In the Mongolian Altai Mountains, its range overlaps with that of the Gray marmot. The species was classified as endangered by the IUCN in 2008. Two subspecies are recognized, ''M. s. sibirica'' and ''M. s. caliginosus''. Etymology The etymology of the word "tarbagan" comes from Russian "тарбаган" (tarbagan), which originates from Proto-Mongolic and denotes specific rodent species; it is related to the Ulch- and Nanai-language word for beaver, "targa". Other names for the tarabagan marmot include Siberian marmot and Mongolian marmot. Description and ecology The tarbagan marmot is medium-sized compared to other marmots, with a 0.25 head-to-body ratio. During the summer, its hair is between 11–20 mm and grows up to 30 mm during winter mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marmots
Marmots are large ground squirrels in the genus ''Marmota'', with 15 species living in Asia, Europe, and North America. These herbivores are active during the summer, when they can often be found in groups, but are not seen during the winter, when they hibernate underground. They are the heaviest members of the squirrel family. Description Marmots are large rodents with characteristically short but robust legs, enlarged claws which are well adapted to digging, stout bodies, and large heads and incisors to quickly process a variety of vegetation. While most species are various forms of earthen-hued brown, marmots vary in fur coloration based roughly on their surroundings. Species in more open habitat are more likely to have a paler color, while those sometimes found in well-forested regions tend to be darker. Total length varies typically from about and body mass averages about in spring in the smaller species and in autumn, at times exceeding , in the larger species. The la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bobak Marmot
The bobak marmot (''Marmota bobak''), also known as the steppe marmot, is a species of marmot that inhabits the steppes of Eastern Europe and Central Asia. It is a social animal and inhabits steppe grassland, including cultivated field borders. It hibernates for more than half the year. Litter sizes average about five offspring and it takes three years for the young marmots to reach sexual maturity. Male offspring leave the home colony after their second winter, and about 60% of mature females give birth in any one year. Taxonomy There are two recognized subspecies: *''M. b. bobak'' — western part of range *''M. b. tschaganensis'' (alternatively ''shaganensis'') — eastern part of range Although western animals are larger and darker than eastern, their separation into subspecies is questionable, as the variation appears to be clinal. In the past, the other relatively short-furred and short-tailed marmots of the Palearctic region, i.e. Himalayan, Tarbagan, gray and fores ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forest-steppe Marmot
The forest-steppe marmot (''Marmota kastschenkoi'') is a rodent species of the marmot genus found in south-central Russia. It lives in wooded forest steppe at an altitude of in a relatively small region located directly east of the upper Ob River. It has traditionally been considered a subspecies of the similar, more southerly distributed gray marmot (''M. baibacina''), but was separated mainly due to different diploid numbers. Description Forest-steppe marmots have a head-and-body length of , and light individuals weigh as little as in the spring (after hibernation Hibernation is a state of minimal activity and metabolic reduction entered by some animal species. Hibernation is a seasonal heterothermy characterized by low body-temperature, slow breathing and heart-rate, and low metabolic rate. It is mos ...) and heavy individuals as much as in the autumn (before hibernation). It hibernates for about 6 months starting in August or September. Population In 2011, it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marmot
Marmots are large ground squirrels in the genus ''Marmota'', with 15 species living in Asia, Europe, and North America. These herbivores are active during the summer, when they can often be found in groups, but are not seen during the winter, when they hibernate underground. They are the heaviest members of the squirrel family. Description Marmots are large rodents with characteristically short but robust legs, enlarged claws which are well adapted to digging, stout bodies, and large heads and incisors to quickly process a variety of vegetation. While most species are various forms of earthen-hued brown, marmots vary in fur coloration based roughly on their surroundings. Species in more open habitat are more likely to have a paler color, while those sometimes found in well-forested regions tend to be darker. Total length varies typically from about and body mass averages about in spring in the smaller species and in autumn, at times exceeding , in the larger species. The lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wild Snow Leopard Goes Grocery Shopping
Wild, wild, wilds or wild may refer to: Common meanings * Wilderness, a wild natural environment * Wildlife, an undomesticated organism * Wildness, the quality of being wild or untamed Art, media and entertainment Film and television * ''Wild'' (2014 film), a 2014 American film from the 2012 book * ''Wild'' (2016 film), a 2016 German film * ''The Wild'', a 2006 Disney 3D animation film * ''Wild'' (TV series), a 2006 American documentary television series * ''The Wilds'' (TV series), a 2020 television series Literature * '' Wild: From Lost to Found on the Pacific Crest Trail'' a 2012 non-fiction book by Cheryl Strayed * ''Wild, An elemental Journey'', a 2006 autobiographical book by Jay Griffiths * ''The Wild'' (novel), a 1991 novel by Whitley Strieber * ''The Wild'', a science fiction novel by David Zindell * ''The Wilds'', a 1998 limited-edition horror novel by Richard Laymon Music * ''Wild'' (band), a five-piece classical female group Albums and EPs * ''Wild'' (EP), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burrow
file:Chipmunk-burrow (exits).jpg, An eastern chipmunk at the entrance of its burrow A burrow is a hole or tunnel excavated into the ground by an animal to construct a space suitable for habitation or temporary refuge, or as a byproduct of Animal locomotion, locomotion. Burrows provide a form of shelter against predation and exposure to the elements, and can be found in nearly every biome and among various biological interactions. Many animal species are known to form burrows. These species range from small amphipods, to very large vertebrate species such as the polar bear. Burrows can be constructed into a wide variety of substrates and can range in complexity from a simple tube a few centimeters long to a complex network of interconnecting tunnels and chambers hundreds or thousands of meters in total length; an example of the latter level of complexity, a well-developed burrow, would be a rabbit Warren (burrow), warren. Vertebrate burrows A large variety of vertebrates constru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quaternary International
''Quaternary International'' is a peer-reviewed scientific journal on quaternary science published by Elsevier on behalf of the International Union for Quaternary Research. The journal was established in 1989 and covers full spectrum of the physical and natural sciences that are commonly employed in solving problems related to the quaternary period. The editor-in-chief is Min-Te Chen ( National Taiwan Ocean University). According to the 2017 ''Journal Citation Reports'', the journal has a 2016 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a type of journal ranking. Journals with higher impact factor values are considered more prestigious or important within their field. The Impact Factor of a journa ... of 2.199. References External links * Quaternary science journals English-language journals Elsevier academic journals Academic journals established in 1989 Journals published between 27 and 51 times per year Acade ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denisovans
The Denisovans or Denisova hominins ( ) are an extinct species or subspecies of archaic human that ranged across Asia during the Lower Paleolithic, Lower and Middle Paleolithic, and lived, based on current evidence, from 285 thousand to 25 thousand years ago. Denisovans are known from few physical remains; consequently, most of what is known about them comes from DNA evidence. No formal species name has been established pending more complete fossil material. The first identification of a Denisovan individual occurred in 2010, based on mitochondrial DNA (mtDNA) extracted from a Juvenile (organism), juvenile finger bone excavated from the Siberian Denisova Cave in the Altai Mountains in 2008. Nuclear DNA indicates close affinities with Neanderthals. The cave was also periodically inhabited by Neanderthals, but it is unclear whether Neanderthals and Denisovans ever cohabited in the cave. Additional specimens from Denisova Cave were subsequently identified, as was a single specimen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denisova Cave
Denisova Cave () is a cave in the Altai Mountains, Bashelaksky Range of the Altai Mountains in Siberia, Russia. It is widely known for having provided items of great archaeology, paleoarchaeological and paleontology, paleontological interest. In particular, the 2008 discovery of bone fragments that in 2010 have been conclusively established to have belonged to a separate early human species - the Denisova hominin - which is named after the cave. Other items including artifacts dated to around 40,000 Before Present, BP. Remains of a 32,000-year-old prehistoric species of Equus (genus), horse have also been found in the cave. The cave is located in a region thought to have been inhabited concurrently in the past by Neanderthals and by modern humans. A bone needle dated to 50,000 years ago was discovered at the archaeological site in 2016 and has been described as the most ancient needle known (though another possible needle dates to about 10,000 years earlier from South Africa f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossils
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Though the fossil record is incomplete, numerous studies have demonstrated that there is enough information available to give a good understanding of the pattern of diversification of life on Earth. In addition, the record can predict and fill gaps such as the discovery of '' Tiktaalik'' in the arctic of Canada. Paleontology includes the study of fossils: their age, method of formation, and evolutionary significance. Specimens are sometimes considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years to 4.1 billion years old. Early edition, published online before print. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
