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Rats are various medium-sized, long-tailed rodents. Species of rats are found throughout the order Rodentia, but stereotypical rats are found in the genus Rattus. Other rat genera include Neotoma, Bandicota and Dipodomys.
The fancy rat is the domesticated form of Rattus norvegicus, the brown rat, and the most common species of rat kept as a pet. The name fancy rat derives from the use of the adjective fancy for a hobby, also seen in "animal fancy", a hobby involving the appreciation, promotion, or breeding of pet or domestic animals. The offspring of wild-caught specimens, having become docile after having been bred for many generations, fall under the fancy type.
Kangaroo rats, small mostly nocturnal rodents of genus Dipodomys, are native to arid areas of western North America. The common name derives from their bipedal form. They hop in a manner similar to the much larger kangaroo, but developed this mode of locomotion independently, like several other clades of rodents.
The European water vole or northern water vole, is a semi-aquatic rodent. It is often informally called the water rat, though it only superficially resembles a true rat. Water voles have rounder noses than rats, deep brown fur, chubby faces and short fuzzy ears; unlike rats their tails, paws and ears are covered with hair.
Rat Park was a series of studies into drug addiction conducted in the late 1970s and published between 1978 and 1981 by Canadian psychologist Bruce K. Alexander and his colleagues at Simon Fraser University in British Columbia, Canada.
The Old World rats and mice, part of the subfamily Murinae in the family Muridae, comprise at least 519 species. Members of this subfamily are called murines. In terms of species richness, this subfamily is larger than all mammal families except the Cricetidae and Muridae, and is larger than all mammal orders except the bats and the remainder of the rodents.
The rodent subfamily Sigmodontinae includes New World rats and mice, with at least 376 species. Many authorities include the Neotominae and Tylomyinae as part of a larger definition of Sigmodontinae. When those genera are included, the species count numbers at least 508. Their distribution includes much of the New World, but the genera are predominantly South American, such as brucies. They invaded South America from Central America as part of the Great American Interchange near the end of the Miocene, about 5 million years ago. Sigmodontines proceeded to diversify explosively in the formerly isolated continent. They inhabit many of the same ecological niches that the Murinae occupy in the Old World.
The desert woodrat is a species of pack rat native to desert regions of western North America.
Willard is a 1971 American horror film directed by Daniel Mann and written by Gilbert Ralston, based on Stephen Gilbert's novel Ratman's Notebooks. Bruce Davison stars as social misfit Willard Stiles, who is squeezed out of the company started by his deceased father. His only friends are a couple of rats raised at home, including Ben and Socrates, and their increasing number of friends. When Socrates is killed by Willard's boss, he goes on a rampage using his rats to attack.
Water Rats is an Australian TV police procedural broadcast on the Nine Network from 1996 to 2001. The series was based on the work of Sydney Water Police who fight crime around Sydney Harbour and surrounding locales. The show was set on and around Goat Island in Sydney Harbour.
The Grand Order of Water Rats is a British entertainment industry fraternity and charitable organisation based in London. Founded in 1889 by the music hall comedians Joe Elvin and Jack Lotto, the order is known for its high-profile membership and benevolent works.
A Thousand Lights in a Darkened Room is the only release by Black Light District, an alias for English experimental group Coil. The alias was one of a few assumed by them in the mid-nineties for releasing purely experimental music.
The long-haired rat, is a species of rodent in the family Muridae which is native to Australia. The long-haired rat is well known for its population irruptions over vast areas of Australia which is the basis of its alternative common name, the plague rat. Most of the research on the long-haired rat has been conducted during times of massive population fluctuations and therefore little is known about their biology in a non-eruptive period.
Xeromys myoides, also known as the water mouse, marine mouse, mangrove mouse, false water rat, manngay and yirrkoo, is a species of rodent native to waterways of Australia and Papua New Guinea.
The desert kangaroo rat is a rodent species in the family Heteromyidae that is found in desert areas of southwestern North America. It is one of the large kangaroo rats, with a total length greater than 12 inches (300 mm) and a mass greater than 3.2 ounces (91 g).
Merriam's kangaroo rat is a species of rodent in the family Heteromyidae. The species name commemorates Clinton Hart Merriam. It is found in the Upper and Lower Sonoran life zones of the southwestern United States, Baja California, and northern Mexico.
Hexachlorocyclopentadiene (HCCPD), also known as C-56, Graphlox, and HRS 1655, is an organochlorine compound with the formula C5Cl6. It is a precursor to pesticides, flame retardants, and dyes. It is a colourless liquid, although commercial samples appear lemon-yellow liquid sometimes with a bluish vapour. Many of its derivatives proved to be highly controversial, as studies showed them to be persistent organic pollutants. An estimated 270,000 tons were produced until 1976, and smaller amounts continue to be produced today. Two prominent manufacturers are Velsicol Chemical Corporation in the US and by Jiangsu Anpon Electrochemicals Co. in China.
L-694247 is a somewhat selective 5-HT1D agonist, with a 10-fold greater affinity for the 5-HT1B receptor, and 25-fold greater affinity for the 5-HT1A receptor. When L-694247 was injected intraventricularly in dehydrated rats, it inhibited water intake. Pre-treatment with a 5-HT1D antagonist abolished this effect. Administration of L-694,247 to normally hydrated rats had no effect on water intake.
LY-255582 is a phenylpiperidine non-selective opioid antagonist. It has been shown to reduce ethanol consumption in experiments carried out on rats. It has also been shown to reduce food and water consumption in rats.
P1-185, also known as progesterone 3-O-(L-valine)-E-oxime or as pregn-4-ene-3,20-dione 3-O-(L-valine)-E-oxime, is a synthetic progestogen and neurosteroid and an oxime ester analogue and prodrug of progesterone. It was developed as an improved water-soluble version of progesterone such that it could be formulated as an aqueous preparation and easily and rapidly administered intravenously as a potential therapy for traumatic brain injury. However, the chemical synthesis of P1-185 was described as somewhat challenging, so oxime conjugates of progesterone of the C20 instead of C3 position, such as EIDD-1723 and EIDD-036, have since been developed.