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Geochelone Elegans
''Geochelone'', from Ancient Greek γῆ (''gê''), meaning "earth", and χελώνη (''khelṓnē''), meaning "turtle", is a genus of tortoises. ''Geochelone'' tortoises, which are also known as typical tortoises or terrestrial turtles, can be found in southern Asia Asia ( , ) is the largest continent in the world by both land area and population. It covers an area of more than 44 million square kilometres, about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which .... They primarily eat plants. Species The genus consists of two extant taxon, extant species: A number of tortoise species have been recently removed from the genus. This taxon as formerly defined was "polyphyletic, representing at least five independent clades". Tortoises removed include members of ''Aldabrachelys'' (from the Seychelles and Madagascar), ''Astrochelys'' (Madagascar), ''Chelonoidis'' (South America and the Galápagos Islands), ''Stigmochelys'' and ''C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian Star Tortoise
The Indian star tortoise (''Geochelone elegans'') is a threatened tortoise species native to India, Pakistan and Sri Lanka where it inhabits dry areas and scrub forest. It has been listed as Vulnerable on the IUCN Red List since 2016, as the population is thought to comprise more than 10,000 individuals, but with a declining trend. It is threatened by habitat loss and poaching for the illegal wildlife trade. It was upgraded to CITES Appendix I in 2019 by full consensus among all member states, giving it the highest level of international protection from commercial trade. Conservation group TRAFFIC found 6,040 were seized globally that were intended to be sold in the pet trade. Currently they are commonly bred in many countries to be sold as pets. Anatomy and morphology The carapace of ''G. elegans'' is very convex, with dorsal shields often forming humps; the lateral margins are nearly vertical; the posterior margin is somewhat expanded and strongly serrated. It has no nuchal s ... [...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] |
Seychelles
Seychelles (, ; ), officially the Republic of Seychelles (; Seychellois Creole: ), is an island country and archipelagic state consisting of 155 islands (as per the Constitution) in the Indian Ocean. Its capital and largest city, Victoria, Seychelles, Victoria, is east of mainland Africa. Nearby island countries and territories include the Comoros, Madagascar, Mauritius, and the French Fifth Republic, French overseas departments and regions of France, overseas departments of Mayotte and Réunion to the south; and the Chagos Archipelago to the east. Seychelles is the list of African countries by area, smallest country in Africa as well as the list of African countries by population, least populated sovereign African country, with an estimated population of 100,600 in 2022. Seychelles was uninhabited prior to being encountered by Europeans in the 16th century. It faced competing French and British interests until it came under full British control in the early 19th century. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Integrated Taxonomic Information System
The Integrated Taxonomic Information System (ITIS) is an American partnership of federal agencies designed to provide consistent and reliable information on the taxonomy of biological species. ITIS was originally formed in 1996 as an interagency group within the US federal government, involving several US federal agencies, and has now become an international body, with Canadian and Mexican government agencies participating. The database draws from a large community of taxonomic experts. Primary content staff are housed at the Smithsonian National Museum of Natural History and IT services are provided by a US Geological Survey facility in Denver. The primary focus of ITIS is North American species, but many biological groups exist worldwide and ITIS collaborates with other agencies to increase its global coverage. Reference database ITIS provides an automated reference database of scientific and common names for species. it contains over 839,000 scientific names, synonyms, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gömböc
A gömböc () is any member of a class of convex set, convex, three-dimensional and homogeneous bodies that are ''mono-monostatic'', meaning that they have just one stable and one unstable Mechanical equilibrium, point of equilibrium when resting on a flat surface. The existence of this class was conjectured by the Russian mathematician Vladimir Arnold in 1995 and mathematical proof, proven in 2006 by the Hungarian scientists Gábor Domokos and Péter Várkonyi by constructing at first a mathematical example and subsequently a physical example. The gömböc's shape helped to explain the body structure of some tortoises and their ability to return to an equilibrium position after being placed upside down. Copies of the first physically constructed example of a gömböc have been donated to institutions and museums, and the largest one was presented at the Expo 2010 Shanghai China, World Expo 2010 in Shanghai, China. Name If analyzed quantitatively in terms of flatness and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megalochelys
''Megalochelys'' ("great turtle") is an extinct genus of tortoises that lived from the Miocene to Pleistocene. They are noted for their giant size, the largest known for any tortoise, with a maximum carapace length of over 2 m (6.5 ft) in ''M. atlas''. The genus ranged from western India and Pakistan to as far east as Sulawesi and Timor in Indonesia, though the island specimens likely represent distinct species. Extinct animals of Indonesia Description One species of ''Megalochelys,'' ''M. atlas'', is the largest known tortoise, with shells of in length having been reported. Popular weight estimates for this taxon have varied greatly with the highest estimates reaching up to in some instances.Orenstein, R. 2001. Survivors in Armor: Turtles, Tortoises, and Terrapins. Key Porter Books Ltd. However, weights based on volumetric displacement of the skeleton suggest a mass of around .Brown, B. 1931. The Largest Known Land Tortoise. Nat. Hist. Vol. 31:184–187. ''M. atl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinction
Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and recover. As a species' potential Range (biology), range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxon, Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the Fossil, fossil record) after a period of apparent absence. Over five billion species are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryotes globally, possibly many times more if microorganisms are included. Notable extinct animal species include Dinosaur, non-avian dinosaurs, Machairodontinae, saber-toothed cats, and mammoths. Through evolution, species arise through the process of specia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centrochelys
''Centrochelys'' is a genus of tortoise. It contains one living species, the African spurred tortoise (''Centrochelys sulcata''), native to the Sahel and adjacent areas. A number of fossil species have been attributed to this genus, but their placement in the genus is considered equivocal. * '' "Centrochelys" atlantica'' Sal Island, Cape Verde, Pleistocene * '' "Centrochelys" burchardi'' Tenerife, Canary Islands, Middle Pleistocene carapace length . * '' "Centrochelys" marocana'' Morocco, North Africa, latest Pliocene-earliest Pleistocene, c. 2.6 mya carapace length ~. * '' “Centrochelys” punica'' Tunisia, North Africa, Early Pliocene carapace length ~. * '' "Centrochelys" vulcanica'' Gran Canaria, Canary Islands, Pliocene only known from femur, estimated carapace length The conservation status of ''Centrochelys sulcata ''has been changed from Vulnerable to Threatened with extinction by the International Union for Conservation of Nature The International Union for Con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elsevier
Elsevier ( ) is a Dutch academic publishing company specializing in scientific, technical, and medical content. Its products include journals such as ''The Lancet'', ''Cell (journal), Cell'', the ScienceDirect collection of electronic journals, ''Trends (journals), Trends'', the ''Current Opinion (Elsevier), Current Opinion'' series, the online citation database Scopus, the SciVal tool for measuring research performance, the ClinicalKey search engine for clinicians, and the ClinicalPath evidence-based cancer care service. Elsevier's products and services include digital tools for Data management platform, data management, instruction, research analytics, and assessment. Elsevier is part of the RELX Group, known until 2015 as Reed Elsevier, a publicly traded company. According to RELX reports, in 2022 Elsevier published more than 600,000 articles annually in over 2,800 journals. As of 2018, its archives contained over 17 million documents and 40,000 Ebook, e-books, with over one b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zoology (journal)
''Zoology'' is a bimonthly peer-reviewed scientific journal covering zoology that was established in 1886. It is published by Elsevier and the editor-in-chief is Christa Beckmann ( Western Sydney University). According to the ''Journal Citation Reports'', the journal has a 2022 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a type of journal ranking. Journals with higher impact factor values are considered more prestigious or important within their field. The Impact Factor of a journa ... of 2.0. See also * List of zoology journals References External links * Zoology journals Publications established in 1886 Bimonthly journals Elsevier academic journals English-language journals {{zoo-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stigmochelys
''Stigmochelys'', from Ancient Greek στίγμα (''stígma''), meaning "spot", and χέλυς (''khélus''), meaning "turtle", is a genus of tortoise endemic to Africa. ''Stigmochelys pardalis'', the leopard tortoise, is the only extant species. Leopard tortoises were once placed in the genus '' Geochelone'' along with many other large tortoises. Two fossil species are known: * '' Stigmochelys brachygularis'' Laetoli beds, Tanzania, Pliocene carapace length . * '' Stigmochelys crassa'' Kenya, 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 mea ...-Pliocene carpace length > References {{Taxonbar, from=Q14566130 Testudinidae Turtle genera Reptile genera with one living species Taxa named by John Edward Gray ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galápagos Islands
The Galápagos Islands () are an archipelago of volcanic islands in the Eastern Pacific, located around the equator, west of the mainland of South America. They form the Galápagos Province of the Republic of Ecuador, with a population of slightly over 33,000 (2020). The province is divided into the Cantons of Ecuador, cantons of San Cristóbal Island, San Cristóbal, Santa Cruz Island (Galápagos), Santa Cruz, and Isabela Island (Galápagos), Isabela, the three most populated islands in the chain. The Galápagos are famous for their large number of Endemism, endemic species, which were studied by Charles Darwin in the 1830s and inception of Darwin's theory, inspired his theory of evolution by means of natural selection. All of these islands are protected as part of Ecuador's Galápagos National Park and Galápagos Marine Reserve, Marine Reserve. Thus far, there is no firm evidence that Polynesian expansion, Polynesians or the indigenous peoples of South America, Indigenous pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
