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Chinchillinae
The family Chinchillidae is in the order Rodentia and consists of the chinchillas, the viscachas, and their fossil relatives. This family is restricted to southern and western South America, mostly living in mountainous regions of the Andes but one species living on plains. They are medium to large-sized rodents, weighing from to , with strong hind legs and large ears and a bushy tail. All species have thick, soft fur, which is considered valuable in some cultures. Characteristics Members of the family Chinchillidae are somewhat rabbit or squirrel-like rodents varying in weight from . They have large eyes, medium-sized ears, soft dense fur and short bushy tails. The forelegs are shorter than the hind legs. The forefeet have four toes while the hind feet have four small-clawed toes in ''Lagidium'' and ''Chinchilla'' but three large-clawed toes in '' Lagostomus'', a digging species. Their dental formula is and their incisors grow continually throughout their lives. Chinchillids a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dental Formula
Dentition pertains to the development of teeth and their arrangement in the mouth. In particular, it is the characteristic arrangement, kind, and number of teeth in a given species at a given age. That is, the number, type, and morpho-physiology (that is, the relationship between the shape and form of the tooth in question and its inferred function) of the teeth of an animal. Animals whose teeth are all of the same type, such as most non-mammalian vertebrates, are said to have '' homodont'' dentition, whereas those whose teeth differ morphologically are said to have ''heterodont'' dentition. The dentition of animals with two successions of teeth (deciduous, permanent) is referred to as '' diphyodont'', while the dentition of animals with only one set of teeth throughout life is ''monophyodont''. The dentition of animals in which the teeth are continuously discarded and replaced throughout life is termed ''polyphyodont''. The dentition of animals in which the teeth are set in so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagostominae
Lagostominae is a subfamily of the family Chinchillidae. It contains the genus ''Lagostomus ''Lagostomus'' is a South American genus of rodents in the family Chinchillidae. It contains a single living species, the plains viscacha, and it is the only Holocene The Holocene ( ) is the current geological epoch. It began approximately 1 ...'' and two extinct genera, ''Prolagostomus'' and ''Pliolagostomus''. References {{Taxonbar, from=Q20760319 Chinchillidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Viscacha
The southern viscacha (''Lagidium viscacia'') is a species of viscacha, a rodent in the family Chinchillidae found in Argentina, Bolivia, Chile, and Peru. It is a colonial animal living in small groups in rocky mountain areas. It has long ears and hind legs and resembles a rabbit in appearance apart from its long, bushy tail, but is not a lagomorph. Description The southern viscacha has yellowish-grey upperparts, paler underparts, and a black-tipped, bushy tail. The body fur is long and soft, while that on the tail is coarse. The long, fur-covered ears have a white fringe and both the short front legs and longer hind legs have four digits on the feet. The soles of the feet have fleshy pads called "pallipes" and they can move about with agility over rocky surfaces. The weight of an adult southern viscacha is about . Distribution and habitat The southern viscacha is native to the mountainous parts of western Argentina, southern Peru, western and central Bolivia, and northern and ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Viscacha
The northern viscacha (''Lagidium peruanum'') is a species of viscacha, a rodent in the family Chinchillidae. It is known from Peru and Chile, at elevations from 300 to 5000 m, and may also be present in Bolivia. Description The northern viscacha grows to a head and body length of some with a bushy tail nearly as long which can be curled in a coil. The adult weight is between . Its long ears are furry and its body fur is dense and soft, but the tail has coarser hairs. The dorsal (upper) surface ranges from dark grey at lower altitudes to brown at higher elevations. The ventral (under) surface is cream or pale grey and the tip of the tail is reddish-brown or black. Distribution and habitat The northern viscacha is native to central and southern Peru and northern Chile, and may also be present in the area around Lake Titicaca in Peru and Bolivia. Its altitude range extends from above sea level. It makes its home in crevices in the rock and is found in various habitats where s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Least Concern
A least-concern species is a species that has been categorized by the International Union for Conservation of Nature (IUCN) as evaluated as not being a focus of species conservation because the specific species is still plentiful in the wild. They do not qualify as threatened, near threatened, or (before 2001) conservation dependent. Species cannot be assigned the "Least Concern" category unless they have had their population status evaluated. That is, adequate information is needed to make a direct, or indirect, assessment of its risk of extinction based on its distribution or population status. Evaluation Since 2001 the category has had the abbreviation "LC", following the IUCN 2001 Categories & Criteria (version 3.1). Before 2001 "least concern" was a subcategory of the "Lower Risk" category and assigned the code "LR/lc" or lc. Around 20% of least concern taxa (3261 of 15636) in the IUCN database still use the code "LR/lc", which indicates they have not been re-evalua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fur Farming
Fur farming is the practice of breeding or raising certain types of animals for their fur. Most of the world's farmed fur is produced by European farmers. In 2018, there were 5,000 fur farms in the European Union, EU, all located across 22 countries; these areas of production collectively accounted for 50% of the global production of farmed fur. The EU accounts for 63% of global mink production and 70% of fox production. Denmark was the leading mink-producing country, accounting for approximately 28% of world production. The top three fur producers are Denmark (formerly), Poland and China. Finland is the largest United States supplier of fox pelts. The United States is a major exporter of fur skins. Major export markets include China, Russia, Canada, and the EU. Exports to Asia as a share of total exports grew from 22% in 1998 to 47% in 2002. As of 2012, Russia was reported to be the world's biggest sales market for fur. China has been the world's largest importer of fur pelts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN
The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice and through building partnerships. The organization is best known to the wider ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colony (biology)
In biology, a colony is composed of two or more conspecific individuals living in close association with, or connected to, one another. This association is usually for mutual benefit such as stronger defense or the ability to attack bigger prey. Colonies can form in various shapes and ways depending on the organism involved. For instance, the bacterial colony is a cluster of identical cells (clones). These colonies often form and grow on the surface of (or within) a solid medium, usually derived from a single parent cell. Colonies, in the context of development, may be composed of two or more unitary (or solitary) organisms or be modular organisms. Unitary organisms have determinate development (set life stages) from zygote to adult form and individuals or groups of individuals (colonies) are visually distinct. Modular organisms have indeterminate growth forms (life stages not set) through repeated iteration of genetically identical modules (or individuals), and it can be diffi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
