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Mauritius Ornate Day Gecko
Mauritius ornate day gecko (''Phelsuma ornata'') is a diurnal species of gecko. It occurs on the island of Mauritius and some surrounding islands and typically inhabits different trees and bushes. The Mauritius ornate day gecko feeds on insects and nectar. Description This gecko is one of the smallest day geckos. It can reach a total length of about 12 cm. The back of the neck and head are greyish brown and bordered by white neck stripes. The body colour is quite variable. It can be bluish green, green with a blue area on the front back, or completely blue. The flanks are brown. The snout consists of an intricate pattern of cyan, white, red and dark blue. The back is covered with red coloured dots. The tail is turquoise with red transverse bars. The ventral side is off-white. Distribution This species is found on Mauritius, Round Island, Île aux Aigrettes (Île aux Aigrettes) and Coin de Mire. It is found in the coastal areas. Habitat ''Phelsuma ornata'' typically li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Edward Gray
John Edward Gray, FRS (12 February 1800 – 7 March 1875) was a British zoologist. He was the elder brother of zoologist George Robert Gray and son of the pharmacologist and botanist Samuel Frederick Gray (1766–1828). The same is used for a zoological name. Gray was keeper of zoology at the British Museum in London from 1840 until Christmas 1874, before the natural history holdings were split off to the Natural History Museum. He published several catalogues of the museum collections that included comprehensive discussions of animal groups and descriptions of new species. He improved the zoological collections to make them amongst the best in the world. Biography Gray was born in Walsall, but his family soon moved to London, where Gray studied medicine. He assisted his father in writing ''The Natural Arrangement of British Plants'' (1821). After being blackballed by the Linnean Society of London, Gray shifted his interest from botany to zoology. He began his zoologica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reptiles Of Mauritius
Reptiles, as most commonly defined are the animals in the Class (biology), class Reptilia ( ), a paraphyletic grouping comprising all sauropsid, sauropsids except birds. Living reptiles comprise turtles, crocodilians, Squamata, squamates (lizards and snakes) and rhynchocephalians (tuatara). As of March 2022, the Reptile Database includes about 11,700 species. In the traditional Linnaean taxonomy, Linnaean classification system, birds are considered a separate class to reptiles. However, crocodilians are more closely related to birds than they are to other living reptiles, and so modern Cladistics, cladistic classification systems include birds within Reptilia, redefining the term as a clade. Other cladistic definitions abandon the term reptile altogether in favor of the clade Sauropsida, which refers to all amniotes more closely related to modern reptiles than to mammals. The study of the traditional reptile Order (biology), orders, historically combined with that of modern amphi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phelsuma
''Phelsuma'' is a large genus of geckos in the family Gekkonidae. Species in the genus ''Phelsuma'' are commonly referred to as day geckos. Some day geckos are seriously endangered and some are common, but all ''Phelsuma'' species are CITES Appendix II listed. Little is known about trade in day geckos, but the IUCN considers it a threat to some species. Some species are captive-bred. Taxonomy The genus itself is thought to have originated anywhere between the Late Cretaceous to the mid-Eocene (43 to 75 mya), as that is when its lineage is known to have diverged from the one containing the Namaqua day gecko (''Rhoptropella''), although it is unknown how closely related both genera are. The crown group containing all recent species is thought to have originated in the early Oligocene, about 30 million years ago, with the most basal of them being the isolated Andaman day gecko (''P. andamanensis''), which diverged from all other species shortly after the crown group originated. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sean McKeown
Sean McKeown (1944 - July 11, 2002), was a herpetologist Herpetology (from Greek ἑρπετόν ''herpetón'', meaning "reptile" or "creeping animal") is the branch of zoology concerned with the study of amphibians (including frogs, toads, salamanders, newts, and caecilians (gymnophiona)) and rept ... in California, United States. Education Sean McKeown was born in Southern California. He held degrees in zoology and anthropology from California State University. Career McKeown worked as a supervising herpetologist at the Honolulu Zoo during the 1970s and early 1980s. During this time, he developed a number of breeding programs for some lizard and tortoise species. For his commitment to captive breeding the Angonoka, Madagascar angulated tortoise (''Geochelone yniphora''), McKeown received the AAZPA conservation award. McKeown received zoo awards for being the first to breed Madagascar ploughshare tortoises. He also administered the first long-term breeding program for the B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microgravity
The term micro-g environment (also μg, often referred to by the term microgravity) is more or less synonymous with the terms ''weightlessness'' and ''zero-g'', but emphasising that g-forces are never exactly zero—just very small (on the International Space Station (ISS), for example, the small g-forces come from tidal effects, gravity from objects other than the Earth, such as astronauts, the spacecraft, and the Sun, air resistance, and astronaut movements that impart momentum to the space station). The symbol for microgravity, ''μg'', was used on the insignias of Space Shuttle flights STS-87 and STS-107, because these flights were devoted to microgravity research in low Earth orbit. The most commonly known microgravity environment can be found aboard the ISS which is located in low-earth orbit at an altitude of around 400 km, orbiting Earth approximately 15 times per day in what is considered free fall. The effects of free fall also enable the creation of short-du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Outer Space
Outer space, commonly shortened to space, is the expanse that exists beyond Earth and its atmosphere and between celestial bodies. Outer space is not completely empty—it is a near-perfect vacuum containing a low density of particles, predominantly a plasma of hydrogen and helium, as well as electromagnetic radiation, magnetic fields, neutrinos, dust, and cosmic rays. The baseline temperature of outer space, as set by the background radiation from the Big Bang, is . The plasma between galaxies is thought to account for about half of the baryonic (ordinary) matter in the universe, having a number density of less than one hydrogen atom per cubic metre and a kinetic temperature of millions of kelvins. Local concentrations of matter have condensed into stars and galaxies. Studies indicate that 90% of the mass in most galaxies is in an unknown form, called dark matter, which interacts with other matter through gravitational but not electromagnetic forces. Observations s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Launch
Space launch is the earliest part of a flight that reaches space. Space launch involves liftoff, when a rocket or other space launch vehicle leaves the ground, floating ship or midair aircraft at the start of a flight. Liftoff is of two main types: rocket launch (the current conventional method), and non-rocket spacelaunch (where other forms of propulsion are employed, including airbreathing jet engines or other kinds). Issues with reaching space Definition of outer space Energy Therefore, by definition for spaceflight to occur, sufficient altitude is necessary. This implies a minimum gravitational potential energy needs to be overcome: for the Kármán line this is approximately 1 MJ/kg. W=mgh, m=1 kg, g=9.82 m/s2, h=105m. W=1*9.82*105≈106J/kg=1MJ/kg In practice, a higher energy than this is needed to be expended due to losses such as airdrag, propulsive efficiency, cycle efficiency of engines that are employed and gravity drag. In the past fifty years spacefl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coin De Mire
The Islets of Mauritius includes nearly a hundred tiny islets and rocks scattered around the coast of Mauritius as well as Rodrigues. Île aux Cerfs Île aux Cerfs (French for ''deer island'') is an island near the east coast of the island of Mauritius. Nowadays there are no more deer on this island, but the island does have a luxury golf course. The only method of access is by ferry from Trou d'Eau Douce or by specific speed boats or catamarans. The part of the ocean surrounding the islet is rather shallow, so you can walk for more than 100 meters in the ocean and the water won't cover you. A great number of tourists visit the island every day, especially on weekends. Near the beach there are many merchants selling a variety of Mauritian souvenirs, clothing and handmade accessories. Round Island Round Island is an uninhabited islet 22.5 kilometers north of Mauritius. It has an area of 2.08 square kilometers and a maximum elevation of 280 meters. The island is a nat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Île Aux Aigrettes
Ile aux Aigrettes is an islet off the south-east coast of Mauritius. It functions as a nature reserve and a scientific research station. It is also a popular visitors attraction - both for tourists and for Mauritians. Geography It has an area of and is the largest islet in the Grand Port bay, off the south-east coast of Mauritius and roughly a kilometer () from the coastal town of Mahebourg. It is low-lying and is formed from coral-limestone (unlike the majority of Mauritius which is from volcanic rock). Nature reserve and conservation ''Ile aux Aigrettes'' conserves the world's only remaining piece of ''"Mauritius Dry Coastal Forest"'' - a once plentiful vegetation type. It is therefore home to a large number of extremely rare or Endangered Species, endangered species of plants and animals. Over several hundred years, indigenous flora and fauna was devastated by logging and invasive species. In this sense, the islet shared the same fate as the rest of Mauritius. The Dodo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Mertens
Robert Friedrich Wilhelm Mertens (1 December 1894 – 23 August 1975) was a German herpetologist. Several taxa of reptiles are named after him.Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii. ("Mertens", p. 176; "Robert", p. 223; "Robert Mertens", p. 223). He postulated Mertensian mimicry. Mertens was born in Saint Petersburg, Russia. He moved to Germany in 1912, where he earned a doctorate in zoology from the University of Leipzig in 1915. During World War I he served in the German army. Mertens worked at the Senckenberg Museum in Frankfurt for many years, beginning as an assistant in 1919, and retiring as director emeritus in 1960. He also became a lecturer at Goethe University Frankfurt in 1932, and became a Professor there in 1939. Both jobs provided him with ample time for extensive travel and the study of lizards. He collected specimens in 30 countries. During World War II, he ev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Round Island (Mauritius)
Round Island or île Ronde may refer to: Australia * Round Island (Queensland), Frankland Islands * Round Island (Tasmania), Hogan Group, northern Bass Strait Canada * Round Island, Nova Scotia * Round Island (Nunavut) (two: Coutts Inlet, Baffin Bay, and Cross Bay, Chesterfield Inlet; there is also a Round Rocks Island) * Île Ronde (Îles Laval), in the Rivière des Prairies, Quebec China * Robert Island (Paracel Islands), also known as Round Island, occupied by China (PRC) and also claimed by Taiwan (ROC) and Vietnam France * île Ronde, Brest, in the roadstead of Brest Hong Kong * Round Island or Pak Sha Chau (白沙洲), in North District * Round Island, Hong Kong or Ngan Chau (銀洲), in Southern District Mauritius * île Ronde, Mauritius, an islet on the coast of Mauritius * Bolyeriidae, also known as the ''Round Island boas'' * Round Island day gecko Seychelles * Round Island, Mahé * Round Island, Praslin United Kingdom * Round Island (Dorse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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