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Cryogenic Freezing
Cryopreservation or cryoconservation is a process where biological material - cell (biology), cells, Biological tissue, tissues, or Organ (anatomy), organs - are frozen to preserve the material for an extended period of time. At low temperatures (typically or using liquid nitrogen) any cell metabolism which might cause damage to the biological material in question is effectively stopped. Cryopreservation is an effective way to transport biological samples over long distances, store samples for prolonged periods of time, and create a bank of samples for users. Molecules, referred to as Cryoprotectant, cryoprotective agents (CPAs), are added to reduce the osmotic shock and physical stresses cells undergo in the freezing process. Some cryoprotective agents used in research are inspired by plants and animals in nature that have unique cold tolerance to survive harsh winters, including: trees, wood frogs, and Tardigrade, tardigrades. The first human corpse to be frozen with the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kenneth B
Kenneth is a given name of Gaelic origin. The name is an Anglicised form of two entirely different Gaelic personal names: ''Cainnech'' and '' Cináed''. The modern Gaelic form of ''Cainnech'' is ''Coinneach''; the name was derived from a byname meaning "handsome", "comely". Etymology The second part of the name ''Cinaed'' is derived either from the Celtic ''*aidhu'', meaning "fire", or else Brittonic ''jʉ:ð'' meaning "lord". People Fictional characters * Kenneth Widmerpool, character in Anthony Powell's novel sequence ''A Dance to the Music of Time'' * Kenneth Parcell from 30 Rock ''30 Rock'' is an American satire, satirical sitcom television series created by Tina Fey that originally aired on NBC from October 11, 2006, to January 31, 2013. The series, based on Fey's experiences as head writer for ''Saturday Night Live' ... Places In the United States: * Kenneth, Minnesota * Kenneth City, Florida In Scotland: * Inch Kenneth, an island off the west coast of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Podarcis Muralis
The common wall lizard (''Podarcis muralis'') is a species of lizard with a large distribution in Europe and well-established introduced populations in North America, where it is also called the European wall lizard. It can grow to about in total length. The animal has shown variation in the places it has been introduced to. Fossils have been found in a cave in Greece dating to the early part of the Holocene. Description The common wall lizard is a small, thin lizard whose small scales are highly variable in colour and pattern. Its coloration is generally brownish or greyish, and may occasionally be tinged with green. In some individuals, the row of spots along their backs may form a line, while others may have a reticulated pattern with dark spots on the side and scattered white spots that can be blue in the shoulder region. The tail is brown, grey or rust in colour, and may also have light bars on the sides. The belly region has six rows of larger rectangular scales that are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chelydra Serpentina
The common snapping turtle (''Chelydra serpentina'') is a species of large freshwater turtle in the Family (biology), family Chelydridae. Its natural range extends from southeastern Canada, southwest to the edge of the Rocky Mountains, as far east as Nova Scotia and Florida. The present-day ''Chelydra serpentina'' population in the Middle Rio Grande suggests that the common snapping turtle has been present in this drainage since at least the seventeenth century and is likely native. The three species of ''Chelydra'' and the larger alligator snapping turtles (genus ''Macrochelys'') are the only extant Chelydridae, chelydrids, a family now restricted to the Americas. The common snapping turtle, as its name implies, is the most widespread. The common snapping turtle is noted for its combative disposition when out of the water with its powerful beak-like jaws, and highly mobile head and neck (hence the Specific name (zoology), specific epithet ''serpentina'', meaning "snake-like"). In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terrapene Ornata
''Terrapene ornata'' is a species of North American box turtle sometimes referred to as the western box turtle or the ornate box turtle. It is one of two recognized species of box turtle in the United States, having two subspecies. The second recognized species of box turtle is the eastern box turtle, '' Terrapene carolina. T. carolina'' has six subspecies, two of which are endemic to Mexico. Taxonomy There are two subspecies of ''T. ornata'': * Ornate box turtle, ''Terrapene ornata ornata'' (Agassiz, 1857) * Desert box turtle, ''Terrapene ornata luteola'' (Smith & Ramsey, 1952) Description ''T. ornata'' has a shell that is less domed than other species of box turtle, appearing to be slightly flattened. Their coloration is generally black or dark brown, with yellow striping. ''T. o. luteola'' tends to have more striping than ''T. o. ornata''. ''T. o. ornata'' are generally more bold in their approach to predators, often stretching their legs and head out in an attempt to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terrapene Carolina
The common box turtle (''Terrapene carolina'') is a species of box turtle with five existing subspecies. It is found throughout the Eastern United States and Mexico. The box turtle has a distinctive hinged lower shell that allows it to completely enclose itself, like a box. Its upper jaw is hooked. The turtle is primarily terrestrial and eats a wide variety of plants and animals. The females lay their eggs in the summer. Turtles in the northern part of their range hibernate over the winter. Common box turtle numbers are declining because of habitat loss, roadkill, and capture for the pet trade. The species is classified as vulnerable to threats to its survival by the IUCN Red List. Three states have chosen subspecies of the common box turtle as their official state reptile: '' T. c. carolina'' in North Carolina and Tennessee and '' T. c. triunguis'' in Missouri. Classification ''Terrapene carolina'' was first described by Carl Linnaeus in his landmark 1758 10th edition of ''S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysemys Picta
The painted turtle (''Chrysemys picta'') is the most widespread native turtle of North America. It lives in relatively slow-moving fresh waters, from southern Canada to northern Mexico, and from the Atlantic to the Pacific. They have been shown to prefer large wetlands with long periods of inundation and emergent vegetation. This species is one of the few that is specially adapted to tolerate freezing temperatures for extended periods of time due to an antifreeze-like substance in their blood that keeps their cells from freezing. This turtle is a member of the genus ''Chrysemys'', which is part of the pond turtle family Emydidae. Fossils show that the painted turtle existed 15 million years ago. Three regionally based subspecies (the eastern, midland, and western) evolved during the last ice age. The southern painted turtle (''C. dorsalis'') is alternately considered the only other species in ''Chrysemys'', or another subspecies of ''C. picta''. The adult painted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salamandrella Keyserlingii
''Salamandrella keyserlingii'', the Siberian salamander, is a species of salamander found in Northeast Asia. It lives in wet woods and riparian groves. Distribution It is found primarily in Siberia east of the Sosva River and the Urals, in the East Siberian Mountains, including the Verkhoyansk Range, northeast to the Anadyr Highlands, east to the Kamchatka Peninsula and south into Manchuria, with outlying populations also in northern Kazakhstan and Mongolia, northeastern China, and on the Korean Peninsula. It is believed to be extirpated from South Korea. An isolated population exists on Hokkaidō, Japan, in the Kushiro Shitsugen National Park. A breeding ground of Siberian salamanders in Paegam, South Hamgyong, is designated North Korean natural monument #360. Description Adults are from 9.0 to 12.5 cm in length. Their bodies are bluish-brown in color, with a purple stripe along the back. Thin, dark brown stripes occur between and around the eyes, and also sometim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyla Chrysoscelis
Cope's gray treefrog (''Dryophytes chrysoscelis'') is a species of treefrog found in the United States and Canada. It is almost indistinguishable from the gray treefrog ('' Dryophytes versicolor''), and shares much of its geographic range. Both species are variable in color, mottled gray to gray-green, resembling the bark of trees. These are treefrogs of woodland habitats, though they will sometimes travel into more open areas to reach a breeding pond. The only readily noticeable difference between the two species is the mating call — Cope's has a faster-paced and slightly higher-pitched call than ''D. versicolor''. In addition, ''D. chrysoscelis'' is reported to be slightly smaller, more arboreal, and more tolerant of dry conditions than ''D. versicolor''.Martof, B. S., et al. (1980). ''Amphibians and Reptiles of the Carolinas and Virginia''. Chapel Hill: University of North Carolina Press. . Taxonomy Edward Drinker Cope described the species in 1880. The specific name, ''chr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyla Versicolor
''Hyla'' is a genus of frogs in the tree frog family Hylidae. As traditionally defined, it was a wastebasket genus with more than 300 species found in Europe, Asia, Africa, and across the Americas. After a major revision of the family, most of these have been moved to other genera so that ''Hyla'' now only contains 17 extant (living) species from Europe, northern Africa and Asia. The earliest known fossil member of this genus is †''Hyla swanstoni'' from the Eocene of Saskatchewan, Canada, but its designation to ''Hyla'' happened before the major revision, meaning that its position needs confirmation. The genus was established by Josephus Nicolaus Laurenti in 1768. It was named after Hylas in Greek mythology, the companion of Hercules. The name is unusual in that – though Laurenti knew that Hylas was male – the name is unambiguously treated in the Feminine gender, feminine grammatical gender for reasons unknown. The etymology of the name is also often incorrectly given as b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
