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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, c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tobiano
Tobiano is a spotted color pattern commonly seen in pinto horses, produced by a dominant gene. The tobiano gene produces white-haired, pink-skinned patches on a base coat color. The coloration is almost always present from birth and does not change throughout the horse's lifetime, unless the horse also carries the gray gene. It is a dominant gene, so any tobiano horse must have at least one parent who carries the tobiano gene. Other spotting patterns seen in pinto horses include frame overo, splashed white and sabino. In the United Kingdom, tobianos are frequently referred to as "coloured" or as "pied": piebald if black and white, skewbald if white and any base color other than black. Sometimes "painted" is also used. Bay and white tobiano horses are also referred to as tricoloured. Characteristics Tobiano traits generally include the following: * White legs from the hocks and knees down * White crossing the back between the withers and the dock of the tail * Whit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skewbald
Skewbald is a colour pattern of horses. A skewbald horse has a coat made up of white patches on a non-black base coat, such as chestnut, bay, or any colour besides black coat. Skewbald horses which are bay and white (bay is a reddish-brown colour with black mane and tail) are sometimes called tricoloured. These horses usually have pink skin under white markings and dark skin under non-white areas. Other than colour, it is similar in appearance to the piebald pattern. Some animals also exhibit colouration of the irises of the eye that match the surrounding skin (blue eyes for white skin, brown for dark). The underlying genetic cause is related to a condition known as leucism. The term is also used to describe spotting patterns in various other animals, such as goats. Horses Terminology In British equestrian use, ''skewbald'' and ''piebald'' (black-and-white) are together known as ''coloured'', and the white markings are called ''patches''. In North American equestri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinto Horse
A pinto horse has a coat color that consists of large patches of white and any other color. Pinto coloration is also called paint, particolored, or in nations that use British English, simply coloured. Pinto horses have been around since shortly after the domestication of the horse. Pinto colors can come in a number of genetically distinct patterns, which have different visual characteristics and tend to make white or leave colored different areas of the horse. These include tobiano, sabino, splashed white, frame, and manchado. A pinto horse may also have a combination of these patterns, such as tovero. Pinto patterns can be found in various breeds of horses, notably including the American Paint Horse. Color breed registries such as the Pinto Horse Association of America record pedigree and horse show results for pinto horses, regardless of ancestry. Both the terms "Pinto" and "Paint" may sometimes refer to breeds or registries rather than coat color. Pinto patterns are vi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neural Crest
The neural crest is a ridge-like structure that is formed transiently between the epidermal ectoderm and neural plate during vertebrate development. Neural crest cells originate from this structure through the epithelial-mesenchymal transition, and in turn give rise to a diverse cell lineage—including melanocytes, craniofacial cartilage and bone, smooth muscle, dentin, peripheral and enteric neurons, adrenal medulla and glia. After gastrulation, the neural crest is specified at the border of the neural plate and the non-neural ectoderm. During neurulation, the borders of the neural plate, also known as the neural folds, converge at the dorsal midline to form the neural tube. Subsequently, neural crest cells from the roof plate of the neural tube undergo an epithelial to mesenchymal transition, delaminating from the neuroepithelium and migrating through the periphery, where they differentiate into varied cell types. The emergence of the neural crest was important in v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black (horse)
Black is a hair coat color of horses in which the entire hair coat is black. It is not uncommon to mistake dark chestnuts or bays for black. Black horses have dark brown eyes, black skin, and wholly black hair coats without any areas of permanently reddish or brownish hair. They may have pink skin beneath any white markings under the areas of white hair, and if such white markings include one or both eyes, the eyes may be blue. Many black horses "sun bleach" with exposure to the elements and sweat, and therefore their coats may lose some of their rich black character and may even resemble bay or seal brown, though examination of the color of hair around the eyes, muzzle and genitals will determine color. Some breeds of horses, such as the Friesian horse, Murgese and Ariegeois (or Merens), are almost exclusively black. Black is also common in the Fell pony, Dales pony, Ostfriesen and Alt-Oldenburger, Kladruber, and Groningen. Visual identification When identifying ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucism
Leucism () is a wide variety of conditions that result in partial loss of pigmentation in an animal—causing white, pale, or patchy coloration of the skin, hair, feathers, scales, or cuticles, but not the eyes. It is occasionally spelled ''leukism''. Some genetic conditions that result in a "leucistic" appearance include piebaldism, Waardenburg syndrome, vitiligo, Chédiak–Higashi syndrome, flavism, isabellinism, xanthochromism, axanthism, amelanism, and melanophilin mutations. Pale patches of skin, feathers, or fur (often referred to as " depigmentation") can also result from injury. Details ''Leucism'' is often used to describe the phenotype that results from defects in pigment cell differentiation and/or migration from the neural crest to skin, hair, or feathers during development. This results in either the entire surface (if all pigment cells fail to develop) or patches of body surface (if only a subset are defective) having a lack of cells that can make pigm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variation Of The Field
In heraldry, variations of the field are any of a number of ways that a Field (heraldry), field (or a Charge (heraldry), charge) may be covered with a pattern, rather than a flat Tincture (heraldry), tincture or a simple Divisions of the field, division of the field. Patterning with ordinaries and subordinaries The diminutives of the Ordinary (heraldry), ordinaries are frequently employed to vary the field. Any of these patterns may be Tincture (heraldry)#Counterchanging and countercolouring, counterchanged by the addition of a division line; for example, ''barry argent and azure, counterchanged per fess'' or ''checquy Or (heraldry), Or and gules, counterchanged per chevron''. Barry, paly, bendy, pily, chevronny When the field is patterned with an even number of horizontal (fesswise) stripes, this is described as ''barry'' e.g. of six or eight, usually of a colour and metal specified, e.g. ''barry of six argent and gules'' (this implies that the chiefmost piece is argent). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magpie
Magpies are birds of various species of the family Corvidae. Like other members of their family, they are widely considered to be intelligent creatures. The Eurasian magpie, for instance, is thought to rank among the world's most intelligent creatures, and is one of the few nonmammalian species able to recognize itself in a mirror test. Magpies have shown the ability to make and use tools, imitate human speech, grieve, play games, and work in teams. They are particularly well known for their songs and were once popular as cagebirds. In addition to other members of the genus '' Pica'', corvids considered magpies are in the genera '' Cissa'', '' Urocissa'', and '' Cyanopica''. Magpies of the genus ''Pica'' are generally found in temperate regions of Europe, Asia, and western North America, with populations also present in Tibet and high-elevation areas of Kashmir. Magpies of the genus ''Cyanopica'' are found in East Asia and the Iberian Peninsula. The birds called magpies in Au ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Irish Tinker Horse 2
Irish commonly refers to: * Someone or something of, from, or related to: ** Ireland, an island situated off the north-western coast of continental Europe ***Éire, Irish language name for the island and the sovereign state *** Erse (other), Scots language name for the Irish language or Irish people ** Republic of Ireland, a sovereign state ** Northern Ireland, a constituent unit of the United Kingdom of Great Britain and Northern Ireland * Irish language, a Celtic Goidelic language of the Indo-European language family spoken in Ireland * Irish English, set of dialects of the English language native to Ireland * Irish people, people of Irish ethnicity Irish may also refer to: Places * Irish Creek (Kansas), a stream in Kansas * Irish Creek (South Dakota), a stream in South Dakota * Irish Lake, Watonwan County, Minnesota * Irish Sea, the body of water which separates the islands of Ireland and Great Britain People * Irish (surname), a list of people * William Irish, pse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British English
British English is the set of Variety (linguistics), varieties of the English language native to the United Kingdom, especially Great Britain. More narrowly, it can refer specifically to the English language in England, or, more broadly, to the collective dialects of English throughout the United Kingdom taken as a single umbrella variety, for instance additionally incorporating Scottish English, Welsh English, and Northern Irish English. Tom McArthur (linguist), Tom McArthur in the Oxford English Dictionary, Oxford Guide to World English acknowledges that British English shares "all the ambiguities and tensions [with] the word 'British' and as a result can be used and interpreted in two ways, more broadly or more narrowly, within a range of blurring and ambiguity". Variations exist in formal (both written and spoken) English in the United Kingdom. For example, the adjective ''wee'' is almost exclusively used in parts of Scotland, north-east England, Northern Ireland, Ireland ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Quarter Horse
The American Quarter Horse, or Quarter Horse, is an American breed of horse that excels at sprinting short distances. Its name is derived from its ability to outrun other horse breeds in races of or less; some have been clocked at speeds up to . The development of the Quarter Horse traces to the 1600s. The American Quarter Horse is the most popular breed in the United States, and the American Quarter Horse Association is the largest breed registry in the world, with almost three million living American Quarter Horses registered in 2014. The American Quarter Horse is well known both as a race horse and for its performance in rodeos, horse shows, and as a working ranch horse. The compact body of the American Quarter Horse is well suited for the intricate and quick maneuvers required in reining, cutting, working cow horse, barrel racing, calf roping, and other western riding events, especially those involving live cattle. The American Quarter Horse is also used in English ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North American English
North American English (NAmE) encompasses the English language as spoken in both the United States and Canada. Because of their related histories and cultures, plus the similarities between the pronunciations (accents), vocabulary, and grammar of American English, U.S. English and Canadian English, linguists often group the two together. Canadians are generally tolerant of both British and American spellings, although certain words always take British spellings (e.g., ''cheque'') and others American spellings (e.g., ''tire'' rather than ''tyre''). Dialects of English spoken by United Empire Loyalists who fled the American Revolution (1775–1783) have had a large influence on Canadian English from its early roots. Some terms in North American English are used almost exclusively in Canada and the United States (for example, the terms ''diaper'' and ''gasoline'' are widely used instead of ''nappy'' and ''petrol''). Although many English speakers from outside North America regard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
