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Yaks
The domestic yak (''Bos grunniens''), also known as the Tartary ox, grunting ox or hairy cattle, is a species of long-haired domesticated cattle found throughout the Himalayan region of the Indian subcontinent, the Tibetan Plateau, Kachin State (Northern Myanmar), Yunnan, Sichuan, Gilgit-Baltistan (Kashmir), and as far north as Mongolia and Siberia. It is descended from the wild yak (''Bos mutus''). Etymology The English word "yak" originates from the . In Tibetan and Balti it refers only to the male of the species, the female being called , or in Tibetan and in Balti. In English, as in most other languages that have borrowed the word, "yak" is usually used for both sexes, with "bull" or "cow" referring to each sex separately. Taxonomy Belonging to the genus ''Bos'', Yaks are related to cattle (''Bos primigenius''). Mitochondrial DNA analyses to determine the evolutionary history of yaks have been inconclusive. The yak may have diverged from cattle at any point between ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wild Yak
The wild yak (''Bos mutus'') is a large, wild bovine native to the Himalayas. It is the ancestor of the domestic yak (''Bos grunniens''). Taxonomy The ancestor of the wild and domestic yak is thought to have diverged from ''Bos primigenius'' at a point between one and five million years ago. The wild yak is now normally treated as a separate species from the domestic yak (''Bos grunniens''). Description The wild yak is among the largest extant bovid species. Adults stand about tall at the shoulder, and weigh . The head and body length is , not counting the tail of .Han Jianlin, M. Melletti, J. Burton, 2014, Wild yak (Bos mutus Przewalski, 1883), Ecology, Evolution and Behavior of Wild Cattle: Implications for Conservation, Chapter 1, p.203, Cambridge University Press The females are about one-third the weight and are about 30% smaller in their linear dimensions when compared to bull wild yaks. Domesticated yaks are somewhat smaller. They are heavily built animals with a bul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bison
Bison are large bovines in the genus ''Bison'' (Greek: "wild ox" (bison)) within the tribe Bovini. Two extant and numerous extinct species are recognised. Of the two surviving species, the American bison, ''B. bison'', found only in North America, is the more numerous. Although colloquially referred to as a buffalo in the United States and Canada, it is only distantly related to the true buffalo. The North American species is composed of two subspecies, the Plains bison, ''B. b. bison'', and the wood bison, ''B. b. athabascae'', which is the namesake of Wood Buffalo National Park in Canada. A third subspecies, the eastern bison (''B. b. pennsylvanicus'') is no longer considered a valid taxon, being a junior synonym of ''B. b. bison''. References to "woods bison" or "wood bison" from the eastern United States refer to this subspecies, not ''B. b. athabascae'', which was not found in the region. The European bison, ''B. bonasus'', or wisent, or zubr, or colloquially European buff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siberia
Siberia ( ; rus, Сибирь, r=Sibir', p=sʲɪˈbʲirʲ, a=Ru-Сибирь.ogg) is an extensive geographical region, constituting all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has been a part of Russia since the latter half of the 16th century, after the Russians conquered lands east of the Ural Mountains. Siberia is vast and sparsely populated, covering an area of over , but home to merely one-fifth of Russia's population. Novosibirsk, Krasnoyarsk and Omsk are the largest cities in the region. Because Siberia is a geographic and historic region and not a political entity, there is no single precise definition of its territorial borders. Traditionally, Siberia extends eastwards from the Ural Mountains to the Pacific Ocean, and includes most of the drainage basin of the Arctic Ocean. The river Yenisey divides Siberia into two parts, Western and Eastern. Siberia stretches southwards from the Arctic Ocean to the hills of north-ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bos Baikalensis
''Bos'' (from Latin '' bōs'': cow, ox, bull) is the genus of wild and domestic cattle. ''Bos'' is often divided into four subgenera: ''Bos'', ''Bibos'', ''Novibos'', and ''Poephagus'', but including these last three divisions within the genus ''Bos'' without including ''Bison'' in the genus is believed to be polyphyletic by many workers on the classification of the genus since the 1980s. The genus as traditionally defined has five extant species but this rises to eight when the domesticated varieties are counted as separate species, and ten when the closely related genus ''Bison'' is also included.Groves, C. P. & Grubb, P. 2011. Ungulate taxonomy. The Johns Hopkins University Press, Baltimore, Maryland.Wang, K., Lenstra, J. A., Liu, L., Hu, Q., Ma, T., Qiu, Q., & Liu, J. (2018). Incomplete lineage sorting rather than hybridization explains the inconsistent phylogeny of the wisent. Communications biology, 1(1), 1-9. Most but not all modern breeds of domesticated cattle are be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bos Grunniens At Yundrok Yumtso Lake
''Bos'' (from Latin '' bōs'': cow, ox, bull) is the genus of wild and domestic cattle. ''Bos'' is often divided into four subgenera: ''Bos'', ''Bibos'', ''Novibos'', and ''Poephagus'', but including these last three divisions within the genus ''Bos'' without including ''Bison'' in the genus is believed to be polyphyletic by many workers on the classification of the genus since the 1980s. The genus as traditionally defined has five extant species but this rises to eight when the domesticated varieties are counted as separate species, and ten when the closely related genus ''Bison'' is also included.Groves, C. P. & Grubb, P. 2011. Ungulate taxonomy. The Johns Hopkins University Press, Baltimore, Maryland.Wang, K., Lenstra, J. A., Liu, L., Hu, Q., Ma, T., Qiu, Q., & Liu, J. (2018). Incomplete lineage sorting rather than hybridization explains the inconsistent phylogeny of the wisent. Communications biology, 1(1), 1-9. Most but not all modern breeds of domesticated cattle are be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Bison
The American bison (''Bison bison'') is a species of bison native to North America. Sometimes colloquially referred to as American buffalo or simply buffalo (a different clade of bovine), it is one of two extant species of bison, alongside the European bison. Its historical range, by 9000 BC, is described as the great bison belt, a tract of rich grassland that ran from Alaska to the Gulf of Mexico, east to the Atlantic Seaboard (nearly to the Atlantic tidewater in some areas) as far north as New York, south to Georgia and, according to some sources, further south to Florida, with sightings in North Carolina near Buffalo Ford on the Catawba River as late as 1750. Once roaming in vast herds, the species nearly became extinct by a combination of commercial hunting and slaughter in the 19th century and introduction of bovine diseases from domestic cattle. With a population in excess of 60 million in the late 18th century, the species was culled down to just 541 animals by 1889. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balti Language
Balti (Nastaʿlīq script: , Tibetan script: སྦལ་ཏི།, ) is a Tibetic language natively spoken by the ethnic Balti people in the Baltistan region of Gilgit−Baltistan, Pakistan, Nubra Valley of the Leh district and in the Kargil district of Ladakh, India. The language differs from Standard Tibetan; many sounds of Old Tibetan that were lost in Standard Tibetan are retained in the Balti language. It also has a simple pitch accent system only in multi-syllabic words while Standard Tibetan has a complex and distinct pitch system that includes tone contour. Demographics and distribution Balti is spoken in most parts of Gilgit-Baltistan in Pakistan, Kargil and Nubra Ladakh in India. According to the Gilgit-Baltistan Scouts, Balti is mostly spoken in Skardu, Shigar, Gultari, Ghanche, Roundu and Kharmang parts of Gilgit-Baltistan. In the twin districts of Ladakh region (Kargil and Leh) it is spoken in Kargil city and its surrounding villages like Hardass, Lato, Kark ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Udder
An udder is an organ formed of two or four mammary glands on the females of dairy animals and ruminants such as cattle, goats, and sheep. An udder is equivalent to the breast in primates and elephantine pachyderms. The udder is a single mass hanging beneath the animal, consisting of pairs of mammary glands with protruding teats. In cattle and camels, there are normally two pairs, in sheep, goats and deer, there is one pair, and in some animals, there are many pairs. In animals with udders, the mammary glands develop on the milk line near the groin, and mammary glands that develop on the chest (such as in humans and apes and elephants) are generally referred to as breasts. Udder care and hygiene in cows is important in milking, aiding uninterrupted and untainted milk production, and preventing mastitis. Products exist to soothe the chapped skin of the udder. This helps prevent bacterial infection, and reduces irritation during milking by the cups, and so the cow is less likely to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piebald
A piebald or pied animal is one that has a pattern of unpigmented spots (white) on a pigmented background of hair, feathers or scales. Thus a piebald black and white dog is a black dog with white spots. The animal's skin under the white background is not pigmented. Location of the unpigmented spots is dependent on the migration of melanoblasts (primordial pigment cells) from the neural crest to paired bilateral locations in the skin of the early embryo. The resulting pattern appears symmetrical only if melanoblasts migrate to both locations of a pair and proliferate to the same degree in both locations. The appearance of symmetry can be obliterated if the proliferation of the melanocytes (pigment cells) within the developing spots is so great that the sizes of the spots increase to the point that some of the spots merge, leaving only small areas of the white background among the spots and at the tips of the extremities. Animals with this pattern may include birds, cats, cattl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roan (color)
Roan is a coat color found in many animals, including horses, cattle, antelope, cat and dogs. It is defined generally as an even mixture of white and pigmented hairs that do not "gray out" or fade as the animal ages."''roan'', ''a''. and ''n.1''" Oxford English Dictionary. 2nd edition 1989. OED Online. Oxford University Press. 3 June 2008. . There are a variety of genetic conditions which produce the colors described as "roan" in various species. Roan horses A horse with intermixed white and colored hairs of any color is usually called a roan. However, such mixtures, which can appear superficially similar, are caused by a number of separate genetic factors. Identifiable types of roans include true or classic roan, varnish roan, and rabicano, though other currently unknown factors may be responsible for ambiguous "roaning." Gray horses, which become lighter as they age until their hair coat is nearly completely white, may be confused with roans when they are young. Duns, whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scrotum
The scrotum or scrotal sac is an anatomical male reproductive structure located at the base of the penis that consists of a suspended dual-chambered sac of skin and smooth muscle. It is present in most terrestrial male mammals. The scrotum contains the external spermatic fascia, testes, epididymis, and ductus deferens. It is a distention of the perineum and carries some abdominal tissues into its cavity including the testicular artery, testicular vein, and pampiniform plexus. The perineal raphe is a small, vertical, slightly raised ridge of scrotal skin under which is found the scrotal septum. It appears as a thin longitudinal line that runs front to back over the entire scrotum. In humans and some other mammals the scrotum becomes covered with pubic hair at puberty. The scrotum will usually tighten during penile erection and when exposed to cold temperatures. One testis is typically lower than the other to avoid compression in the event of an impact. The scrotum is biologicall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opinion 2027
Opinion 2027 is a 2003 ruling of the International Commission on Zoological Nomenclature (ICZN) concerning the conservation of 17 species names of wild animals with domestic derivatives. Opinion 2027 is in response to Case 3010 and subsequent comments. The 17 names involved: *''Bombyx mandarina'' *''Bos gaurus'' *''Bos mutus'' *''Bos primigenius'' *''Bubalus arnee'' *''Camelus ferus'' *''Canis lupus'' *'' Capra aegagrus'' *''Carassius gibelio'' *'' Cavia aperea'' *''Equus africanus'' *''Equus ferus'' *''Felis silvestris'' *''Lama guanicoe'' *''Mustela putorius'' *'' Ovis orientalis'' *''Vicugna vicugna ' is a genus containing four South American camelids, the wild guanaco and vicuña, and the domesticated llama and alpaca. Before the Spanish conquest of the Americas, llamas and alpacas were the only domesticated ungulates of the continent. ...'' The opinion of the commission was that "the "name of a wild species...is not invalid by virtue of being predated by the name based o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
