|
Rodents Discovered In The 2000s
Several species of rodent Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are na ... have been newly identified in different parts of the world since 2000. References {{DEFAULTSORT:Rodents Discovered In The 2000s Lists of animals described in the 21st century ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodent
Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are native to all major land masses except for New Zealand, 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/richochetal (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 mice, rats, squirrels, prairie dogs, porcupines, beavers, guinea pigs, and hamsters. Rabbits, hares, and pikas, whose i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Tapulao
Mount Tapulao (also known as High Peak) is the highest mountain in the Zambales Mountain Range and in the province of Zambales in the Philippines. The peak, which rise to an elevation of above sea level, and it is located in the municipality of Palauig, Zambales. Its name is derived from the abundance of Sumatran Pine trees in the area, known in Zambal as ''tapolaw.''(2007-09-01)"Mt. Tapulao (2,037+)" Pinoy Mountaineer. Retrieved on 2012-02-11."Zambales Mountains" . NewCAPP. Retrieved on 2012-02-15. The mountain was once a site of a large-scale mining operations. The destruction of the beautiful natural scenery is visible in the mine pits on the summit as well as other related structures along ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Akodon
''Akodon'' is a genus consisting of South American grass mice. They mostly occur south of the Amazon Basin and along the Andes north to Venezuela, but are absent from much of the basin itself, the far south of the continent, and the lowlands west of the Andes. ''Akodon'' is one of the most species-rich genera of Neotropical rodents. Species of ''Akodon'' are known to inhabit a variety of habitats from tropical and tropical moist forests to altiplano and desert. Fossils are known from the late Pliocene onwards. Taxonomy ''Akodon'' is the largest genus in the tribe Akodontini. Three of its synonyms—''Chalcomys'', ''Hypsimys'', and particularly ''Microxus''—have sometimes been regarded as distinct genera. Neomicroxus was separated in 2013. Previously associated with ''Akodon'', the genera ''Abrothrix'', '' Deltamys'', ''Necromys'', ''Thalpomys'', and '' Thaptomys'' are currently recognized as distinct. Some species of the tribe Abrotrichini are called akodons. The genus cont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Akodon Philipmyersi
Philip Myers's akodont (''Akodon philipmyersi'') is a recently described species of grass mouse from Misiones Province, Argentina. Like other grass mice, A. philipmyersi is a small, non-descript, greyish-brown mouse with prominent ears. The species was recognized as distinct from other grass mice on the basis of unique features of karyology, genetic sequence, cranial measurements, and general morphology. Etymology The specific epithet for this animal, ''philipmyersi'', is named after renowned mammalogist Philip Myers of the University of Michigan Museum of Zoology and major contributor to thAnimal Diversity Web Philip Myers has made major contributions in determining the relationships among members of the genus ''Akodon''. Description ''A. philipmyersi'' is described as having a small body size, tail, and limbs relative to other members of the genus. The animals have a karyotype of ( 2n=36, FN=42). The species differs from its only sympatric relative, '' A. montensis'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living Fossil
A living fossil is an extant taxon that cosmetically resembles related species known only from the fossil record. To be considered a living fossil, the fossil species must be old relative to the time of origin of the extant clade. Living fossils commonly are of species-poor lineages, but they need not be. While the body plan of a living fossil remains superficially similar, it is never the same species as the remote relatives it resembles, because genetic drift would inevitably change its chromosomal structure. Living fossils exhibit stasis (also called "bradytely") over geologically long time scales. Popular literature may wrongly claim that a "living fossil" has undergone no significant evolution since fossil times, with practically no molecular evolution or morphological changes. Scientific investigations have repeatedly discredited such claims. The minimal superficial changes to living fossils are mistakenly declared as an absence of evolution, but they are examples of s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diatomyidae
Diatomyidae is a family of hystricomorph rodents. It is represented by a single living species, ''Laonastes aenigmamus,'' native to Laos in Southeast Asia. Fossil species are known from the Oligocene and Miocene of Asia and eastern Europe. "Lazarus effect" Before ''Laonastes'' was discovered, the family Diatomyidae was known only from fossils. The family has a nearly continuous fossil range from Early Oligocene fossils of '' Fallomus'' from the Lower Chitarwata Formation (32.5 million years ago, Bugti Member, Bugti Hills,) in Balochistan, Pakistan, to Middle/Late Miocene fossils (11 Mya) of ''Diatomys''. Jenkins ''et al.''Jenkins, Paulina D.; Kilpatrick, C. William; Robinson, Mark F. & Timmins, Robert J. (2004): Morphological and molecular investigations of a new family, genus and species of rodent (Mammalia: Rodentia: Hystricognatha) from Lao PDR. ''Systematics and Biodiversity'' 2(4): 419-454. (HTML abstract). Erratum: ''Systematics and Biodiversity'' 3(3):343. reported ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laonastidae
Diatomyidae is a family of hystricomorph rodents. It is represented by a single living species, ''Laonastes aenigmamus,'' native to Laos in Southeast Asia. Fossil species are known from the Oligocene and Miocene of Asia and eastern Europe. "Lazarus effect" Before ''Laonastes'' was discovered, the family Diatomyidae was known only from fossils. The family has a nearly continuous fossil range from Early Oligocene fossils of '' Fallomus'' from the Lower Chitarwata Formation (32.5 million years ago, Bugti Member, Bugti Hills,) in Balochistan, Pakistan, to Middle/Late Miocene fossils (11 Mya) of ''Diatomys''. Jenkins ''et al.''Jenkins, Paulina D.; Kilpatrick, C. William; Robinson, Mark F. & Timmins, Robert J. (2004): Morphological and molecular investigations of a new family, genus and species of rodent (Mammalia: Rodentia: Hystricognatha) from Lao PDR. ''Systematics and Biodiversity'' 2(4): 419-454. (HTML abstract). Erratum: ''Systematics and Biodiversity'' 3(3):343. report ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
