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Mycoplasma Agassizii
''Mycoplasma agassizii '' is a species of bacteria in the genus ''Mycoplasma''. This genus of bacteria lacks a cell wall around their cell membrane. Without a cell wall, they are unaffected by many common antibiotics such as penicillin or other beta-lactam antibiotics that target cell wall synthesis. Mycoplasma are the smallest bacterial cells yet discovered, can survive without oxygen and are typically about 0.1 μm in diameter. Cultures are available from the Mollicutes Culture Collection (Curators Dr. J.K. Davis and M.K. Davidson, University of Florida). This mycoplasma species was originally isolated from a species of desert tortoise ''Gopherus agassizii'' which was named for by Louis Agassiz. Since its discovery, it has been recovered from other species of tortoises: * ''Geochelone chilensis'' or Chaco tortoise * '' Geochelone pardalis'' or Leopard tortoise * ''Geochelone elegans'' or Indian star tortoise * '' Geochelone forstenii'' or Travancore tortoise * '' Geochelo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geochelone Elegans
''Geochelone'' is a genus of tortoises. ''Geochelone'' tortoises, which are also known as typical tortoises or terrestrial turtles, can be found in southern Asia. They primarily eat plants. Species The genus consists of two 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 ''Centrochelys'' (Africa), and the extinct ''Megalochelys'' (southern Asia). These species are also unique for their ability to remember patterns and spatial pathways. Similar to mammals, these tortoises can remember directions and pathways by remembering the correct pathways in their long-term memory. Fossils * ''Geochelone burchardi'' Tenerife giant tortoise * ''Geochelo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal Bacterial Diseases
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a bilaterally symmetric body plan. The Bilateria include the protostomes, containing animals such as nematodes, arthropods, flatworms, annelids and molluscs, and the deuterostomes, containing the echinoderms and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacteria Described In 2001
Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep biosphere of Earth's crust. Bacteria are vital in many stages of the nutrient cycle by recycling nutrients such as the fixation of nitrogen from the atmosphere. The nutrient cycle includes the decomposition of dead bodies; bacteria are responsible for the putrefaction stage in this process. In the biological communities surrounding hydrothermal vents and cold seeps, extremophile bacteria provide the nutrients needed to sustain life by converting dissolved compounds, such as hydrogen sulphide and methane, to energy. Bacteria also live in symbiotic and parasitic relationships wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Testudo Graeca
The Greek tortoise (''Testudo graeca''), also known commonly as the spur-thighed tortoise, is a species of tortoise in the family Testudinidae. ''Testudo graeca'' is one of five species of Mediterranean tortoises (genera '' Testudo'' and '' Agrionemys''). The other four species are Hermann's tortoise (''T. hermanni''), the Egyptian tortoise (''T. kleinmanni''), the marginated tortoise (''T. marginata''), and the Russian tortoise (''A. horsfieldii''). The Greek tortoise is a very long-lived animal, achieving a lifespan upwards of 125 years, with some unverified reports up to 200 years. Geographic range The Greek tortoise's geographic range includes North Africa, Southern Europe, and Southwest Asia. It is prevalent in the Black Sea coast of the Caucasus (from Anapa, Russia, to Sukhumi, Abkhazia, Georgia, to the south), as well as in other regions of Georgia, Armenia, Iran, and Azerbaijan. Evolution The oldest known definitive fossil is from the Early Pliocene of Greece, but sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terrapene Carolina Bauri
The Florida box turtle (''Terrapene carolina bauri)'' is a subspecies of turtle belonging to the family Emydidae and is one of six extant subspecies of the common box turtle (''T. carolina'') Etymology The subspecific name, ''bauri'', is in honor of German herpetologist Georg Baur. Geographic range Of the four subspecies of the common box turtle, the Florida box turtle has the southernmost range. It is endemic to the U.S. state of Florida and the extreme southeastern portion of Georgia. Its distribution is widespread throughout Florida's mainland and has also been observed in the Florida Keys and the barrier islands in the Gulf of Mexico off of Florida's western coast. Habitat The Florida box turtle can be found in damp environments such as wetlands, marshlands, and near swamps but usually does not enter water deep enough to swim. It is often found in the flatwoods, upland, and mesophytic hammock but is generally absent in the high pine. Within these habitats, juveniles prefer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indotestudo
''Indotestudo'' is a genus of tortoises in the family Testudinidae. The genus is native to South and Southeast Asia. The three species in the genus are all threatened. Species ''Indotestudo'' contains the following species: References * Alderton, D. 1988. Turtles and tortoises of the world. Facts on File, New York. * Blyth, E. 1854. Notices and descriptions of various reptiles, new or little-known. Part I. J. Asiat. Soc. Bengal 22 853 __NOTOC__ Year 853 ( DCCCLIII) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. Events By place Byzantine Empire * May 22 – A Byzantine fleet (85 ships and 5,000 men) sacks and d ... 639-655 * Bour, R. 1980. Essai sur la taxinomie des Testudinidae actuels (Reptilia, Chelonii). Bull. Mus. natl. Hist. nat. Paris (4) 2 (2): 541-546 * Chan-ard,T.; Grossmann, W.; Gumprecht, A. & Schulz, K. D. 1999. Amphibians and reptiles of peninsular Malaysia and Thailand - an illustrated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gopherus Polyphemus
The gopher tortoise (''Gopherus polyphemus'') is a species of tortoise in the family Testudinidae. The species is native to the southeastern United States. The gopher tortoise is seen as a keystone species because it digs burrows that provide shelter for at least 360 other animal species. ''G. polyphemus'' is threatened by predation and habitat destruction. The gopher tortoise is a representative of the genus ''Gopherus'', which contains the only tortoises native to North America. The gopher tortoise is the state reptile of Georgia and the state tortoise of Florida. Etymology The specific name, ''polyphemus'', refers to the cave-dwelling giant, Polyphemus, of Greek mythology. Gopher tortoises are so named because of some species' habit of digging large, deep burrows like the gopher. Description The gopher tortoise is a fairly large terrestrial reptile which possesses forefeet well adapted for burrowing, and elephantine hind feet. These features are common to most tortoises ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geochelone Sulcate
''Geochelone'' is a genus of tortoises. ''Geochelone'' tortoises, which are also known as typical tortoises or terrestrial turtles, can be found in southern Asia. They primarily eat plants. Species The genus consists of two 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 '' Centrochelys'' (Africa), and the extinct 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 ... '' Megalochelys'' (southern Asia). These species are also unique for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geochelone Forstenii
''Geochelone'' is a genus of tortoises. ''Geochelone'' tortoises, which are also known as typical tortoises or terrestrial turtles, can be found in southern Asia. They primarily eat plants. Species The genus consists of two 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 '' Centrochelys'' (Africa), and the extinct 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 ... '' Megalochelys'' (southern Asia). These species are also unique for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geochelone Pardalis
The leopard tortoise (''Stigmochelys pardalis'') is a large and attractively marked tortoise found in the savannas of eastern and southern Africa, from Sudan to the southern Cape. It is the only extant member of the genus ''Stigmochelys'', although in the past, it was commonly placed in ''Geochelone''. This tortoise is a grazing species that favors semiarid, thorny to grassland habitats. In both very hot and very cold weather, it may dwell in abandoned fox, jackal, or aardvark holes. The leopard tortoise does not dig other than to make nests in which to lay eggs. Given its propensity for grassland habitats, it grazes extensively upon mixed grasses. It also favors succulents and thistles. Taxonomy and etymology The phylogenic placement of the leopard tortoise has been subject to several revisions. Different authors have placed it in ''Geochelone'' (1957), ''Stigmochelys'' (2001), ''Centrochelys'' (2002), and ''Psammobates'' (2006). More recently, consensus appears to have settled on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacteria
Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep biosphere of Earth's crust. Bacteria are vital in many stages of the nutrient cycle by recycling nutrients such as the fixation of nitrogen from the atmosphere. The nutrient cycle includes the decomposition of dead bodies; bacteria are responsible for the putrefaction stage in this process. In the biological communities surrounding hydrothermal vents and cold seeps, extremophile bacteria provide the nutrients needed to sustain life by converting dissolved compounds, such as hydrogen sulphide and methane, to energy. Bacteria also live in symbiotic and parasitic relationsh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
