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Sicilian Wolf
The Sicilian wolf (''Canis lupus cristaldii'') ( scn, lupu sicilianu) is an extinct subspecies of the gray wolf that was endemic to Sicily. It was paler than the mainland Italian wolf and comparable in size to the extant Arabian wolf and extinct Japanese wolf. The subspecies reportedly went extinct due to human persecution in the 1920s, though there were several possible sightings up to the 1970s. It was identified as a distinct subspecies in 2018 through morphological examinations of the few remaining mounted specimens and skulls, as well as Mitochondrial DNA, mtDNA analyses. Description The Sicilian wolf was a slender, short-legged subspecies with light, tawny coloured fur. The dark band present on the forelimbs of the mainland Italian wolf are absent or poorly defined in the Sicilian wolf. Measurements taken from mounted museum specimens show that adults had a mean head to body length of 105.4 cm and a shoulder height of 54.6 cm, thus making them slightly smaller t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subspecies Of The Gray Wolf
There are 38 subspecies of ''Canis lupus'' listed in the taxonomic authority ''Mammal Species of the World'' (2005, 3rd edition). These subspecies were named over the past 250 years, and since their naming, a number of them have gone extinct. The nominate subspecies is the Eurasian wolf (''Canis lupus lupus''). Taxonomy In 1758, the Swedish botanist and zoologist Carl Linnaeus published in his ''Systema Naturae'' the binomial nomenclature – or the two-word naming – of species. ''Canis'' is the Latin word meaning "dog", and under this genus he listed the dog-like carnivores including domestic dogs, wolves, and jackals. He classified the domestic dog as ''Canis familiaris'', and on the next page he classified the wolf as ''Canis lupus''. Linnaeus considered the dog to be a separate species from the wolf because of its head and body and tail ''cauda recurvata'' - its upturning tail - which is not found in any other canid. In 1999, a study of mitochondrial DNA indicated that t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haplotype
A haplotype ( haploid genotype) is a group of alleles in an organism that are inherited together from a single parent. Many organisms contain genetic material ( DNA) which is inherited from two parents. Normally these organisms have their DNA organized in two sets of pairwise similar chromosomes. The offspring gets one chromosome in each pair from each parent. A set of pairs of chromosomes is called diploid and a set of only one half of each pair is called haploid. The haploid genotype (haplotype) is a genotype that considers the singular chromosomes rather than the pairs of chromosomes. It can be all the chromosomes from one of the parents or a minor part of a chromosome, for example a sequence of 9000 base pairs. However, there are other uses of this term. First, it is used to mean a collection of specific alleles (that is, specific DNA sequences) in a cluster of tightly linked genes on a chromosome that are likely to be inherited together—that is, they are likely to be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammals Described In 2018
Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or hair, and three middle ear bones. These characteristics distinguish them from reptiles (including birds) from which they diverged in the Carboniferous, over 300 million years ago. Around 6,400 extant species of mammals have been described divided into 29 orders. The largest orders, in terms of number of species, are the rodents, bats, and Eulipotyphla (hedgehogs, moles, shrews, and others). The next three are the Primates (including humans, apes, monkeys, and others), the Artiodactyla (cetaceans and even-toed ungulates), and the Carnivora (cats, dogs, seals, and others). In terms of cladistics, which reflects evolutionary history, mammals are the only living members of the Synapsida (synapsids); this clade, together with Saurops ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wolves
The wolf (''Canis lupus''; : wolves), also known as the gray wolf or grey wolf, is a large canine native to Eurasia and North America. More than thirty subspecies of ''Canis lupus'' have been recognized, and gray wolves, as popularly understood, comprise wild subspecies. The wolf is the largest extant member of the family Canidae. It is also distinguished from other '' Canis'' species by its less pointed ears and muzzle, as well as a shorter torso and a longer tail. The wolf is nonetheless related closely enough to smaller ''Canis'' species, such as the coyote and the golden jackal, to produce fertile hybrids with them. The banded fur of a wolf is usually mottled white, brown, gray, and black, although subspecies in the arctic region may be nearly all white. Of all members of the genus ''Canis'', the wolf is most specialized for cooperative game hunting as demonstrated by its physical adaptations to tackling large prey, its more social nature, and its highly adva ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subspecies Of Canis Lupus
There are 38 subspecies of ''Canis lupus'' listed in the taxonomic authority '' Mammal Species of the World'' (2005, 3rd edition). These subspecies were named over the past 250 years, and since their naming, a number of them have gone extinct. The nominate subspecies is the Eurasian wolf (''Canis lupus lupus''). Taxonomy In 1758, the Swedish botanist and zoologist Carl Linnaeus published in his ''Systema Naturae'' the binomial nomenclature – or the two-word naming – of species. ''Canis'' is the Latin word meaning "dog", and under this genus he listed the dog-like carnivores including domestic dogs, wolves, and jackals. He classified the domestic dog as ''Canis familiaris'', and on the next page he classified the wolf as ''Canis lupus''. Linnaeus considered the dog to be a separate species from the wolf because of its head and body and tail ''cauda recurvata'' - its upturning tail - which is not found in any other canid. In 1999, a study of mitochondrial DNA indicated that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammal Extinctions Since 1500
Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or hair, and three middle ear bones. These characteristics distinguish them from reptiles (including birds) from which they diverged in the Carboniferous, over 300 million years ago. Around 6,400 extant species of mammals have been described divided into 29 orders. The largest orders, in terms of number of species, are the rodents, bats, and Eulipotyphla (hedgehogs, moles, shrews, and others). The next three are the Primates (including humans, apes, monkeys, and others), the Artiodactyla (cetaceans and even-toed ungulates), and the Carnivora (cats, dogs, seals, and others). In terms of cladistics, which reflects evolutionary history, mammals are the only living members of the Synapsida (synapsids); this clade, together with Saurops ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct Canines
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angelo De Gubernatis
Count Angelo De Gubernatis (1840–26 February 1913), Italian man of letters, was born in Turin and educated there and at Berlin, where he studied philology. He was nominated for the Nobel Prize in Literature fourteen times. Life In 1862 he was appointed professor of Sanskrit at Florence, but having married a cousin of the Socialist Bakunin and become interested in his views he resigned his appointment and spent some years in travel. He was reappointed, however, in 1867; and in 1891 he was transferred to the University of Rome La Sapienza. He became prominent both as an orientalist, a publicist and a poet. He maintained close ties with Romanian orientalists. At International Congress of Orientalists from Florence in 1878 he invited Bogdan Petriceicu Haşdeu, a prominent Romanian writer and philologist. He was a good friend with the Romanian Princess Dora d'Istria (Elena Ghica) who collaborated with him at Rivista Orientale. He founded the ' (1862), the ' (1867), the ' and ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Messina Strait
The Strait of Messina ( it, Stretto di Messina, Sicilian: Strittu di Missina) is a narrow strait between the eastern tip of Sicily ( Punta del Faro) and the western tip of Calabria ( Punta Pezzo) in Southern Italy. It connects the Tyrrhenian Sea to the north with the Ionian Sea to the south, within the central Mediterranean. At its narrowest point, between Torre Faro and Villa San Giovanni, it is wide. At the city of Messina, it is wide. The strait's maximum depth is about . The strait has strong tidal currents that create a unique marine ecosystem. A natural whirlpool in the northern portion of the strait has been linked to the Greek legend of Scylla and Charybdis. In some circumstances, the mirage of Fata Morgana can be observed when looking at Sicily from Calabria. With its bottleneck shape, it is also a compulsory point of transit in the migration of many bird species. In 1957, a 220 kV overhead power line was built across the Strait of Messina. Its pylons are am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Himalayan Wolf
The Himalayan wolf (''Canis lupus chanco'') is a canine of debated taxonomy. It is distinguished by its genetic markers, with mitochondrial DNA indicating that it is genetically basal to the Holarctic gray wolf, genetically the same wolf as the Tibetan and Mongolian wolf, and has an association with the African wolf (''Canis lupaster''). No striking morphological differences are seen between the wolves from the Himalayas and those from Tibet. The Himalayan wolf lineage can be found living in Ladakh in the Himalayas, the Tibetan Plateau, and the mountains of Central Asia predominantly above in elevation because it has adapted to a low-oxygen environment, compared with other wolves that are found only at lower elevations. Some authors have proposed the reclassification of this lineage as a separate species. In 2019, a workshop hosted by the IUCN/SSC Canid Specialist Group noted that the Himalayan wolf's distribution included the Himalayan range and the Tibetan Plateau. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Museo Di Storia Naturale Di Firenze
The Museo di Storia Naturale di Firenze is a natural history museum in 6 major collections, located in Florence, Italy. It is part of the University of Florence. Museum collections are open mornings except Wednesday, and all day Saturday; an admission fee is charged. The museum was established on February 21, 1775 by Grand Duke Leopold II, Holy Roman Emperor, Pietro Leopoldo as the Imperial Regio Museo di Fisica e Storia Naturale. At that time it consisted of several natural history collections housed within the palazzo Torrigiani on Via Romana. Through the past two centuries, it has grown significantly and now forms one of the finest collections in Italy. Collections Today's collections are as follows: * Orto Botanico di Firenze, Giardino dei Semplici (Via Micheli, 3) - Europe's third oldest botanical garden, established in 1545, now containing some 9,000 plant specimens. * Museo di Botanica (Via La Pira, 4) - a large herbarium of approximately 4 million specimens, including th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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