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Mouse Lemur
The mouse lemurs are nocturnal lemurs of the genus ''Microcebus''. Like all lemurs, mouse lemurs are native to Madagascar. Mouse lemurs have a combined head, body and tail length of less than , making them the smallest primates (the smallest species being Madame Berthe's mouse lemur); however, their weight fluctuates in response to daylight duration. Lemurs and mouse lemurs were announced by the IUCN as the most endangered of all vertebrates. There were two known mouse lemur species in 1992; by 2016, there were 24. It was estimated that the 24 mouse lemur species evolved from a common ancestor 10 million years ago. Evolution of mouse lemurs is an example for adaptive radiation. Mouse lemurs are omnivorous; their diets are diverse and include insect secretions, arthropods, small vertebrates, gum, fruit, flowers, nectar, and also leaves and buds depending on the season. Mouse lemurs are considered Species complex, cryptic species—with very little morphological differences betwee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Étienne Geoffroy Saint-Hilaire
Étienne Geoffroy Saint-Hilaire (15 April 177219 June 1844) was a French naturalist who established the principle of "unity of composition". He was a colleague of Jean-Baptiste Lamarck and expanded and defended Lamarck's evolutionary theories. Geoffroy's scientific views had a transcendental flavor (unlike Lamarck's materialistic views) and were similar to those of German morphologists like Lorenz Oken. He believed in the underlying unity of organismal design, and the possibility of the transmutation of species in time, amassing evidence for his claims through research in comparative anatomy, paleontology, and embryology. He is considered as a predecessor of the evo-devo evolutionary concept. Life and early career Geoffroy was born at Étampes (in present-day Essonne), and studied at the Collège de Navarre, in Paris, where he studied natural philosophy under M. J. Brisson. He then attended the lectures of Daubenton at the College de France and Fourcroy at the Jardin des Pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Model Organism
A model organism (often shortened to model) is a non-human species that is extensively studied to understand particular biological phenomena, with the expectation that discoveries made in the model organism will provide insight into the workings of other organisms. Model organisms are widely used to research human disease when human experimentation would be unfeasible or unethical. This strategy is made possible by the common descent of all living organisms, and the conservation of metabolic and developmental pathways and genetic material over the course of evolution. Studying model organisms can be informative, but care must be taken when generalizing from one organism to another. In researching human disease, model organisms allow for better understanding the disease process without the added risk of harming an actual human. The species chosen will usually meet a determined taxonomic equivalency to humans, so as to react to disease or its treatment in a way that resembles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MacArthur's Mouse Lemur
MacArthur's mouse lemur (''Microcebus macarthurii''), or the Anjiahely mouse lemur, is a species of mouse lemur known only from Makira Natural Park in northeastern Madagascar. The species is named in honor of the founder of the MacArthur Foundation The John D. and Catherine T. MacArthur Foundation is a private foundation that makes grants and impact investments to support non-profit organizations in approximately 50 countries around the world. It has an endowment of $7.0 billion and p ..., which financed the studies that included the discovery of this species. References External links Mammals described in 2008 Mouse lemurs {{lemur-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goodman's Mouse Lemur
Goodman's mouse lemur (''Microcebus lehilahytsara'') is a species of mouse lemur from the region near Andasibe in eastern Madagascar. The species is named in honor of primatologist Steven M. Goodman. "Lehilahytsara" is a combination of the Malagasy words which mean "good" and "man". The finding was presented August 10, 2005, along with the discovery of the northern giant mouse lemur (''Mirza zaza'') as a separate species. In 2005, Goodman was awarded a MacArthur Fellowship The MacArthur Fellows Program, also known as the MacArthur Fellowship and commonly but unofficially known as the "Genius Grant", is a prize awarded annually by the MacArthur Foundation, John D. and Catherine T. MacArthur Foundation typically to ... for his discovery and further research in Madagascar. Description Mouse lemurs are among the smallest primates, and Goodman's mouse lemur is no exception. Although not the smallest overall, Goodman's mouse lemur has a head-body length comparable to M. ber ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jonah's Mouse Lemur
''Microcebus jonahi'', or Jonah's mouse lemur, is tiny species of primate. It weighs 60 g and has a body length of around 13 cm and its tail measures around 13 cm as well. It is the 25th recognized species of mouse lemur and the 108th recognized species of lemur. Description Jonah's mouse lemur has small ears and the characteristic huge eyes of lemurs with a distinct white stripe between the eyes. It has short, dense fur with a white with slightly yellowish belly and a brownish back. It weighs 60 g and has a body length of around 13 cm and its tail measures around 13 cm as well. Distribution Jonah's mouse lemur lives in northeastern Madagascar, including within the protected Mananara National Park. The species was named after Malagasy primatologist Dr. Jonah Ratsimbazafy. Conservation status The forested area in the region where the Jonah's mouse lemur is found is undergoing massive deforestation. In northeast Madagascar, forest cover declined from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jolly's Mouse Lemur
Jolly's mouse lemur (''Microcebus jollyae'') is a species of mouse lemur from Mananjary and Kianjavato in Madagascar. The species is named in honor of primatologist Alison Jolly. Jolly's mouse lemur is uniformly reddish-brown with a small white patch on the snout and a completely gray belly. The finding was announced June 21, 2006 at the Conservation International Global Symposium in Antananarivo, Madagascar Madagascar (; mg, Madagasikara, ), officially the Republic of Madagascar ( mg, Repoblikan'i Madagasikara, links=no, ; french: République de Madagascar), is an island country in the Indian Ocean, approximately off the coast of East Africa ..., along with the discovery of Mittermeier's mouse lemur ''Microcebus mittermeieri'' and Simmons' mouse lemur ''Microcebus simmonsi'' as separate species. These new species were also officially announced in a paper in the ''International Journal of Primatology''. References External links {{Taxonbar, from=Q1206248 Mam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reddish-gray Mouse Lemur
The reddish-gray mouse lemur (''Microcebus griseorufus'') also known as the gray-brown mouse lemur or rufous-gray mouse lemur, is a small, solitary-but-social, nocturnal and omnivorous primate from the Western Madagascar in the region around Beza Mahafaly Reserve, north to Lamboharana. Like the other lemur species, the reddish-grey mouse lemur is endemic to Madagascar. They generally live in the drier regions of the island. It is categorized as least concerned in the IUCN Red List. Appearance & Morphology ''Microcebus griseorufus'' has a pelage color that is alternating light neutral gray, pale neutral gray, and light pale neutral gray dorsally and ventrally light grayish-white on the anterior two-thirds and bicolored light grayish-white and pale neutral gray on the posterior one-third. It has a cinnamon colored dorsal stripe running from the crown of the head or the shoulders to the end of the tail. The head of this species has a pale neutral gray spot above the nose, cinnamo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gerp's Mouse Lemur
Gerp's mouse lemur (''Microcebus gerpi'') is a species of mouse lemur known only from the Sahafina Forest in eastern Madagascar, near Mantadia National Park. Its discovery was announced in 2012 by a German and Malagasy research team. The Sahafina Forest had not been studied until 2008 and 2009, when Groupe d'Étude et de Recherche sur les Primates de Madagascar (GERP)—a Malagasy-based research and conservation group for which the lemur is named—inventoried the forest's lemurs. Based on genetic studies, measurements, and photos, the research team confirmed the Gerp's mouse lemur was an undescribed species, distinct from Goodman's mouse lemur, which is found away. Gerp's mouse lemur is significantly larger, weighing on average , compared to Goodman's mouse lemur, which weighs about . Jolly's mouse lemur, which is its closest relative and a neighbor to the south, is comparably larger, but differs in tail length and genetics. Because it is a recently discovered species, li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ganzhorn's Mouse Lemur
Ganzhorn's mouse lemur (''Microcebus ganzhorni'') is a species of lemur described in 2016. The discovery was made by researchers at the German Primate Center. It was discovered in Madagascar among closely related species such as Madame Berthe's mouse lemur, already described in 2013. Due to their close resemblance, it was initially impossible to identify them as distinct species. It was only after genetic analyses (mtDNA sequencing) that the species was established. The genetic study was done in collaboration with scientists at the University of Kentucky, the Duke Lemur Center and the University of Antananarivo in Madagascar. The species is named after Professor Jörg Ganzhorn of Hamburg University The University of Hamburg (german: link=no, Universität Hamburg, also referred to as UHH) is a public research university in Hamburg, Germany. It was founded on 28 March 1919 by combining the previous General Lecture System ('' Allgemeines Vor ..., who had pioneered the research a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danfoss' Mouse Lemur
Danfoss's mouse lemur (''Microcebus danfossi''), or the Ambarijeby mouse lemur, is a species of mouse lemur endemic to Madagascar. It lives in western deciduous forest within a limited range between the Sofia River and the Maevarano River. This species has been found in substantial populations in the Ambarijevy, Anjajavy, and Beanamaolo forests in Madagascar. Their lifespan is about 5 years but can live up to 10 years. They are part of the infra order called lemuriformes which represents 20% of the entire primates diversity and over 60% of the mammalian genera of Madagascar. There is no current estimate of the number of individuals present in the wild, nor in captivity. However the IUCN red list provides the number of 2.2 to 5 individuals per hectares as the species density and that its population is decreasing. Habitat Their average individual home range from of dry deciduous forests elevated up to . Their habitat can be separated into sixteen forest fragments. They tend to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boraha Mouse Lemur
The Nosy Boraha mouse lemur (''Microcebus boraha'') is a species of mouse lemur described in 2016 from Madagascar. It was discovered by a team of researchers at the German Primate Center. It was initially discovered among closely related species such as Madame Berthe's mouse lemur (already described in 2013), Bemanasy mouse lemur, and Ganzhorn's mouse lemur. Morphological similarity made it impossible to identify them as distinct species. A genetic study was done in collaboration with scientists at the University of Kentucky, the Duke Lemur Center and the University of Antananarivo in Madagascar. The mtDNA Mitochondrial DNA (mtDNA or mDNA) is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form that cells can use, such as adenosine triphosphate (ATP). Mitochondrial DNA ... sequencing revealed that the species was unique. The species is named after its natural habitat Malagasy Nosy Boraha on the Is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nature (journal)
''Nature'' is a British weekly scientific journal founded and based in London, England. As a multidisciplinary publication, ''Nature'' features peer-reviewed research from a variety of academic disciplines, mainly in science and technology. It has core editorial offices across the United States, continental Europe, and Asia under the international scientific publishing company Springer Nature. ''Nature'' was one of the world's most cited scientific journals by the Science Edition of the 2019 ''Journal Citation Reports'' (with an ascribed impact factor of 42.778), making it one of the world's most-read and most prestigious academic journals. , it claimed an online readership of about three million unique readers per month. Founded in autumn 1869, ''Nature'' was first circulated by Norman Lockyer and Alexander Macmillan as a public forum for scientific innovations. The mid-20th century facilitated an editorial expansion for the journal; ''Nature'' redoubled its efforts in exp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
