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Tiger Quoll
The tiger quoll (''Dasyurus maculatus''), also known as the spotted-tailed quoll, spotted quoll, spotted-tailed dasyure, or tiger cat, is a carnivorous marsupial of the quoll genus ''quoll, Dasyurus'' native to Australia. With males and females weighing around , respectively, it is the world's second-largest extant carnivorous marsupial, behind the Tasmanian devil. Two subspecies are recognised; the nominate is found in wet forests of southeastern Australia and Tasmania, and a northern subspecies, ''D. m. gracilis'', is found in a small area of northern Queensland and is endangered. The tiger quoll commonly preys on small mammals, insects, birds, Poultry, domestic poultry and large marsupials such as wombats. It mostly hunts live prey but occasionally scavenges when the opportunity arises. The tiger quoll kills its prey by executing a killing bite to the base of the skull or top of the neck, depending on the size of the prey. The species is listed as Near-threatened species, ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Kerr (writer)
Robert Kerr (20 October 1757 – 11 October 1813) was a Scottish surgeon, writer on scientific and other subjects, and translator. Life Kerr was born in 1757 in Bughtridge, Roxburghshire, the son of James Kerr, a jeweller, who served as MP for Edinburgh 1747–1754, and his wife Elizabeth. He was sent to the High School in Edinburgh. He studied medicine at the University of Edinburgh and practised at the Edinburgh Foundling Hospital as a surgeon. He was elected a Fellow of the Royal Society of Edinburgh in 1788. His proposers were Alexander Fraser Tytler, James Russell and Andrew Dalzell. At this time, he lived at Foresters Wynd off the Royal Mile in Edinburgh. He translated several scientific works into English, such as Antoine Lavoisier's work of 1789, '' Traité Élémentaire de Chimie'', published under the title ''Elements of Chemistry in a New Systematic Order containing All the Modern Discoveries'', in 1790. In 1792, he published ''The Animal Kingdom'', the first tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latin
Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area around Rome, Italy. Through the expansion of the Roman Republic, it became the dominant language in the Italian Peninsula and subsequently throughout the Roman Empire. It has greatly influenced many languages, Latin influence in English, including English, having contributed List of Latin words with English derivatives, many words to the English lexicon, particularly after the Christianity in Anglo-Saxon England, Christianization of the Anglo-Saxons and the Norman Conquest. Latin Root (linguistics), roots appear frequently in the technical vocabulary used by fields such as theology, List of Latin and Greek words commonly used in systematic names, the sciences, List of medical roots, suffixes and prefixes, medicine, and List of Latin legal terms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myrmecobius
The numbat (''Myrmecobius fasciatus''), also known as the noombat or walpurti, is an insectivorous marsupial. It is diurnal and its diet consists almost exclusively of termites. The species was once widespread across southern Australia, but is now restricted to several small colonies in Western Australia. It is therefore considered an endangered species and protected by conservation programs. Numbats were recently re-introduced to fenced reserves in South Australia and New South Wales. The numbat is the faunal emblem of Western Australia. Taxonomy The numbat genus ''Myrmecobius'' is the sole member of the family Myrmecobiidae, one of four families that make up the order Dasyuromorphia, the Australian marsupial carnivores. The species is not closely related to other extant marsupials; the current arrangement in the order Dasyuromorphia places its monotypic family with the diverse and carnivorous species of Dasyuridae. Genetic studies have shown the ancestors of the num ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thylacinus Cynocephalus White Background
''Thylacinus'' is a genus of extinct carnivorous marsupials in the family Thylacinidae. The only recent member was the thylacine The thylacine (; binomial name ''Thylacinus cynocephalus''), also commonly known as the Tasmanian tiger or Tasmanian wolf, was a carnivorous marsupial that was native to the Mainland Australia, Australian mainland and the islands of Tasmani ... (''Thylacinus cynocephalus''), commonly also known as the Tasmanian tiger or Tasmanian wolf. The last known Tasmanian tiger was in the Beaumaris Zoo in Tasmania, eventually dying in 1936. The earliest known member of the genus, '' Thylacinus macknessi'' appeared during the Early Miocene, around 16 million years ago, and was smaller than the modern thylacine, with a body mass of about . ''Thylacinus'' represented the only extant genus of the family after the beginning of the Pliocene around 5 million years ago. Over time members of the genus saw an increase in body mass and a greater adaption to hypercarn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dasyuromorphia
Dasyuromorphia (, meaning "hairy tail" in Greek) is an order comprising most of the Australian carnivorous marsupials, including quolls, dunnarts, the numbat, the Tasmanian devil, and the extinct thylacine. In Australia, the exceptions include the omnivorous bandicoots (order Peramelemorphia) and the marsupial moles (which are insectivorous but are very different and are now accorded an order of their own, Notoryctemorphia). Numerous South American species of marsupials (orders Didelphimorphia, Paucituberculata, and Microbiotheria) are also carnivorous, as were some extinct members of the order Diprotodontia, including extinct kangaroos (such as '' Ekaltadeta'' and '' Propleopus)'' and thylacoleonids, and some members of the partially extinct clade Metatheria and all members of the extinct superorder Sparassodonta. The order contains four families: one, the Myrmecobiidae, with just a single living species (the numbat), two with only extinct species (including the thylacine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene
The Miocene ( ) is the first epoch (geology), geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene followed the Oligocene and preceded the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by distinct global events but by regionally defined transitions from the warmer Oligocene to the cooler Pliocene Epoch. During the Early Miocene, Afro-Arabia collided with Eurasia, severing the connection between the Mediterranean and Indian Oceans, and allowing the interchange of fauna between Eurasia and Africa, including the dispersal of proboscideans and Ape, hominoids into Eurasia. During the late Miocene, the conn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitochondria
A mitochondrion () is an organelle found in the cells of most eukaryotes, such as animals, plants and fungi. Mitochondria have a double membrane structure and use aerobic respiration to generate adenosine triphosphate (ATP), which is used throughout the cell as a source of chemical energy. They were discovered by Albert von Kölliker in 1857 in the voluntary muscles of insects. The term ''mitochondrion'', meaning a thread-like granule, was coined by Carl Benda in 1898. The mitochondrion is popularly nicknamed the "powerhouse of the cell", a phrase popularized by Philip Siekevitz in a 1957 ''Scientific American'' article of the same name. Some cells in some multicellular organisms lack mitochondria (for example, mature mammalian red blood cells). The multicellular animal '' Henneguya salminicola'' is known to have retained mitochondrion-related organelles despite a complete loss of their mitochondrial genome. A large number of unicellular organisms, such as microspo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MT-RNR1
Mitochondrially encoded 12S ribosomal RNA (often abbreviated as 12S or 12S rRNA) is the SSU rRNA of the mitochondrial ribosome. In humans, 12S is encoded by the ''MT-RNR1'' gene and is 959 nucleotides long. MT-RNR1 is one of the 37 genes contained in animal mitochondria genomes. Their 2 rRNA, 22 tRNA and 13 mRNA genes are very useful in phylogenetic studies, in particular the 12S and 16S rRNAs. The 12S rRNA is the mitochondrial homologue of the prokaryotic 16S and eukaryotic nuclear 18S ribosomal RNAs. Mutations in the MT-RNR1 gene may be associated with hearing loss. The rRNA gene also encodes a peptide MOTS-c, also known as Mitochondrial-derived peptide MOTS-c or Mitochondrial open reading frame of the 12S rRNA-c. Structure The ''MT-RNR1'' gene is located on the p arm of the mitochondrial DNA at position 12 and it spans 953 base pairs. Function The ''MT-RNR1'' gene encodes for an rRNA responsible for regulating insulin sensitivity and metabolic homeostasis. The prot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cytochrome B
Cytochrome b is a protein found in the membranes of aerobic cells. In eukaryotic mitochondria (inner membrane) and in aerobic prokaryotes, cytochrome b is a component of respiratory chain complex III () — also known as the bc1 complex or ubiquinol-cytochrome c reductase. In plant chloroplasts and cyanobacteria, there is a homologous protein, cytochrome b6, a component of the plastoquinone-plastocyanin reductase (), also known as the b6f complex. These complexes are involved in electron transport, the pumping of protons to create a proton-motive force ( PMF). This proton gradient is used for the generation of ATP. These complexes play a vital role in cells. Structure and function Cytochrome b/b6 is an integral membrane protein of approximately 400 amino acid residues that probably has 8 transmembrane segments. In plants and cyanobacteria, cytochrome b6 consists of two protein subunits encoded by the petB and petD genes. Cytochrome b/b6 non-covalently binds two heme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mulgara
Mulgaras are the six small rat-sized species in the genus ''Dasycercus''. They are marsupial carnivores, closely related to the Tasmanian devil and the quolls, that live in deserts and spinifex grasslands of arid Australia. They are nocturnal, but occasionally "sunbathe" in the entrance of the burrow in which they dwell. Their kidneys are highly developed to excrete extremely concentrated urine to preserve water, as the animals rarely drink. They feed mostly on insects, but also eat reptiles and small mammals. They are seasonal breeders and breed from June to September. The pouch comprises two lateral folds of skin. Traditionally, two distinct but very similar species were recognized. The brush-tailed mulgara (''D. blythi'', previously classified as ''D. cristicauda''), has an uncrested tail, two upper premolars, and six nipples. The crest-tailed mulgara (previously ''D. hillieri'', but now reclassified as ''D. cristicauda'') has a crested tail, three upper premolars, and eigh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kowari
The kowari (''Dasyuroides byrnei''), also known by its Diyari name kariri, is a small carnivorous marsupial native to the gibber deserts of central Australia. It is the sole member of the genus ''Dasyuroides.'' Other names for the species include brush-tailed marsupial rat, bushy-tailed marsupial rat, kawiri, Kayer rat, and Byrne's crest-tailed marsupial rat. Taxonomy The kowari was first described by Sir Walter Baldwin Spencer in 1896, based on a type specimen collected near Charlotte Waters in the Northern Territory. The species was named in honour of Patrick Michael Byrne, the telegraph operator at the Charlotte Waters Telegraph Station who handed the specimen to Spencer. However, it is likely that the specimen was first collected by a person from the Arrernte nation. The kowari is a member of the family Dasyuridae, and the sole member of genus ''Dasyuroides.'' For some time it was included in the genus ''Dasycercus'' with the mulgaras, however recent genetic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
