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Longnose Gar
The longnose gar (''Lepisosteus osseus''), also known as longnose garpike or billy gar, is a ray-finned fish in the family Lepisosteidae. The genus may have been present in North America for about 100 million years. References are made to gars being a primitive group of bony fish because they have retained some primitive features, such as a spiral valve intestine, but they are not primitive in the sense of not being fully developed. They have an olive brown to green, torpedo-shaped body armored with ganoid scales, elongated jaws that form a needle-like snout nearly three times the length of its head, and a row of numerous sharp, cone-shaped teeth on each side of the upper jaw. They typically inhabit freshwater lakes, brackish water near coastal areas, swamps, and sluggish backwaters of rivers and streams. They can breathe both air and water, which allows them to inhabit aquatic environments that are low in oxygen. Longnose gar are found along the east coasts of North and Cen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepisosteidae
Gars are members of the family Lepisosteidae, which are the only surviving members of the Ginglymodi, an ancient holosteian group of ray-finned fish, which first appeared during the Triassic, over 240 million years ago. Gars comprise seven living species of fish in two genera that inhabit fresh, brackish, and occasionally marine waters of eastern North America, Central America and Cuba in the Caribbean, though extinct members of the family were more widespread. Gars have elongated bodies that are heavily armored with ganoid scales, and fronted by similarly elongated jaws filled with long, sharp teeth. Gars are sometimes referred to as "garpike", but are not closely related to pike, which are in the fish family Esocidae. All of the gars are relatively large fish, but the alligator gar (''Atractosteus spatula'') is the largest; the alligator gar often grows to a length over and a weight over , and specimens of up to in length have been reported. Unusually, their vascularised sw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepisosteus
''Lepisosteus'' is a genus of gars in the family Lepisosteidae. Distribution While in the present day, ''Lepisosteus'' is only known across North America, fossil remains show it was much more widespread in the past, with specimens known from the Cretaceous of India and Brazil. Systematics Species The currently recognized species are: Extant species Fossil species * †''Lepisosteus aganus'' (Cope, 1877) * †''Lepisosteus bemisi'' Grande, 2010 * †''Lepisosteus bohemicus'' (Laube, 1901) * †''Lepisosteus cominatoi'' Santos, 1984 * †''Lepisosteus cycliferus'' (Cope, 1873) * †''Lepisosteus glaber'' Marsh, 1871 * †'' Lepisosteus indicus'' Woodward, 1908 * †'' Lepisosteus integer'' (Cope, 1877) * †'' Lepisosteus fimbriatus'' Wood, 1846 * †'' Lepisosteus knieskerni'' Fowler, 1911 * †'' Lepisosteus longus'' Lambe, 1908 * †'' Lepisosteus nahunticus'' (Cope, 1869) * †'' Lepisosteus notabilis'' Leidy, 1873 * †'' Lepisosteus occidentalis''Pearson ''et al.'', 20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepisosteus OsseusZZ
''Lepisosteus'' is a genus of gars in the family Lepisosteidae. Distribution While in the present day, ''Lepisosteus'' is only known across North America, fossil remains show it was much more widespread in the past, with specimens known from the Cretaceous of India and Brazil. Systematics Species The currently recognized species are: Extant species Fossil species * †''Lepisosteus aganus'' (Cope, 1877) * †''Lepisosteus bemisi'' Grande, 2010 * †''Lepisosteus bohemicus'' (Laube, 1901) * †''Lepisosteus cominatoi'' Santos, 1984 * †''Lepisosteus cycliferus'' (Cope, 1873) * †''Lepisosteus glaber'' Marsh, 1871 * †''Lepisosteus indicus'' Woodward, 1908 * †'' Lepisosteus integer'' (Cope, 1877) * †''Lepisosteus fimbriatus'' Wood, 1846 * †'' Lepisosteus knieskerni'' Fowler, 1911 * †'' Lepisosteus longus'' Lambe, 1908 * †'' Lepisosteus nahunticus'' (Cope, 1869) * †'' Lepisosteus notabilis'' Leidy, 1873 * †'' Lepisosteus occidentalis''Pearson ''et al.'', 2002 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isla De La Juventud
Isla de la Juventud (; en, Isle of Youth) is the second-largest Cuban island (after Cuba's mainland) and the seventh-largest island in the West Indies (after mainland Cuba itself, Hispaniola, Jamaica, Puerto Rico, Trinidad, and Andros Island). The island was called the Isle of Pines ( es, Isla de Pinos) until 1978. It has an area and is south of the island of Cuba, across the Gulf of Batabanó. The island lies almost directly south of Havana and Pinar del Río and is a Special Municipality (), not part of any province and is therefore administered directly by the central government of Cuba. The island has only one municipality, also named Isla de la Juventud. The largest of the 350 islands in the Canarreos Archipelago (''Archipiélago de los Canarreos''), the island has an estimated population of 83,544 (in 2019). The capital and largest city is Nueva Gerona in the north, and the second largest and oldest city is Santa Fe in the interior. Other communities include Columbi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek grc, label=none, πλεῖστος, pleīstos, most and grc, label=none, καινός, kainós (latinized as ), 'new'. At the end of the preceding Pliocene, the previously isolated North and South American continents were joined by the Isthmus of Panama, causing Great American Interchang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meade County, KS
Meade County (standard abbreviation: ME) is a county located in the U.S. state of Kansas. As of the 2020 census, the county population was 4,055. The largest city and county seat is Meade. The county was created in 1873 and named in honor of General George G. Meade. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.1%) is water. Adjacent counties * Gray County (north) * Ford County (northeast) * Clark County (east) * Beaver County, Oklahoma (south) * Seward County (west) * Haskell County (northwest) Demographics As of the census of 2000, there were 4,631 people, 1,728 households, and 1,252 families residing in the county. The population density was 5 people per square mile (2/km2). There were 1,968 housing units at an average density of 2 per square mile (1/km2). The racial makeup of the county was 91.10% White, 0.39% Black or African American, 0.54% Native American, 0.22% Asian, 6.24% from other races, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Irvingtonian
The Irvingtonian North American Land Mammal Age on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), spanning from 1.9 million – 250,000 years BP.The _Blancan, Irvingtonian and Rancholabrean Mammal Ages by Christopher J. Bell and Ernest L. Lundelius Jr., Anthony D. Barnosky, Russell W. Graham, Everett H. Lindsay, Dennis R. Ruez Jr., Holmes A. Semken Jr., S. David Webb, and Richard J. Zakrzewski. January 2004 in the book: Late Cretaceous and Cenozoic Mammals of North America: Biostratigraphy and Geochronology. Chapter: 7. Publisher: Columbia University Press; Editors: Michael O. Woodburne. pp274-276 Named after an assemblage of fossils from the [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuba
Cuba ( , ), officially the Republic of Cuba ( es, República de Cuba, links=no ), is an island country comprising the island of Cuba, as well as Isla de la Juventud and several minor archipelagos. Cuba is located where the northern Caribbean Sea, Gulf of Mexico, and Atlantic Ocean meet. Cuba is located east of the Yucatán Peninsula (Mexico), south of both the American state of Florida and the Bahamas, west of Hispaniola ( Haiti/Dominican Republic), and north of both Jamaica and the Cayman Islands. Havana is the largest city and capital; other major cities include Santiago de Cuba and Camagüey. The official area of the Republic of Cuba is (without the territorial waters) but a total of 350,730 km² (135,418 sq mi) including the exclusive economic zone. Cuba is the second-most populous country in the Caribbean after Haiti, with over 11 million inhabitants. The territory that is now Cuba was inhabited by the Ciboney people from the 4th millennium BC with the Gua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New England Aquarium
The New England Aquarium is a public aquarium located in Boston, Massachusetts. The species exhibited include harbor and northern fur seals, California sea lions, African and southern rockhopper penguins, giant Pacific octopuses, weedy seadragons, and thousands of saltwater and freshwater fishes. In addition to the main aquarium building, attractions at Central Wharf include the Simons Theatre and the New England Aquarium Whale Watch. More than 1.3 million guests visited the aquarium each year prior to the outbreak of the COVID-19 pandemic. The Anderson Cabot Center for Ocean Life at the New England Aquarium conducts long-running research on the North Atlantic right whale, and its Quincy Animal Care Center rescues and rehabilitates hundreds of sea turtles annually. History Boston has had multiple aquariums since the 1880s, the last before the New England Aquarium being the South Boston Aquarium at Marine Park, which closed its doors in the 1950s. As part of the city’s goal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salinities
Salinity () is the saltiness or amount of salt dissolved in a body of water, called saline water (see also soil salinity). It is usually measured in g/L or g/kg (grams of salt per liter/kilogram of water; the latter is dimensionless and equal to ‰). Salinity is an important factor in determining many aspects of the chemistry of natural waters and of biological processes within it, and is a thermodynamic state variable that, along with temperature and pressure, governs physical characteristics like the density and heat capacity of the water. A contour line of constant salinity is called an ''isohaline'', or sometimes ''isohale''. Definitions Salinity in rivers, lakes, and the ocean is conceptually simple, but technically challenging to define and measure precisely. Conceptually the salinity is the quantity of dissolved salt content of the water. Salts are compounds like sodium chloride, magnesium sulfate, potassium nitrate, and sodium bicarbonate which dissolve into io ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vascularized
Angiogenesis is the physiological process through which new blood vessels form from pre-existing vessels, formed in the earlier stage of vasculogenesis. Angiogenesis continues the growth of the vasculature by processes of sprouting and splitting. Vasculogenesis is the embryonic formation of endothelial cells from mesoderm cell precursors, and from neovascularization, although discussions are not always precise (especially in older texts). The first vessels in the developing embryo form through vasculogenesis, after which angiogenesis is responsible for most, if not all, blood vessel growth during development and in disease. Angiogenesis is a normal and vital process in growth and development, as well as in wound healing and in the formation of granulation tissue. However, it is also a fundamental step in the transition of tumors from a benign state to a malignant one, leading to the use of angiogenesis inhibitors in the treatment of cancer. The essential role of angiogenesis in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insect
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; In: potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within. Nearly all insects hatch from eggs. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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