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Latest Rat Stories

2010-10-13 13:39:00

LEXINGTON, Ky., Oct. 13 /PRNewswire/ -- Transposagen Biopharmaceuticals, Inc. (Transposagen), the worldwide leader in genetically modified rats, has announced today that it has entered into an exclusive marketing and distribution agreement with Charles River Laboratories, a leading global provider of research models and services. The license includes two of Transposagen's high-value TGEM(TM) Knockout Rat Models, one rat line contains a mutation in the p53 gene, the most studied tumor...

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2010-10-12 08:35:00

Dogs showing separation-related behavior exhibit a 'pessimistic' cognitive bias A study has gained new insight into the minds of dogs, discovering that those that are anxious when left alone also tend to show 'pessimistic' like behavior. The research by academics at the University of Bristol, and funded by the RSPCA is published in Current Biology tomorrow (12 October). The study provides an important insight into dogs' emotions, and enhances our understanding of why behavioral responses to...

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2010-10-10 08:20:00

Black Death, one of the deadliest pandemics in human history, has been confirmed by anthropologists to have been caused by a germ called Yersinia pestis. Researchers studied tooth and bone samples from 76 skeletons discovered in "plague pits" in France, Germany, Italy and the Netherlands and found DNA evidence that Y. pestis was to blame for the plague that wiped out nearly a third of Europe's population during the Middle Ages. It was believed for more than a century that Y. pestis was the...

2010-09-08 13:40:24

Thomas Serre, assistant professor of cognitive, linguistic and psychological sciences at Brown, and colleagues at MIT and Caltech have developed a computer-based system that can learn how to identify behaviors of interest and then analyze many hours of video. The team describes the system in Nature Communications. For decades, carefully logging data about how mice go through the motions of their daily routines has been a tedious staple of behavioral and neuroscience research:...

2010-08-06 17:02:00

HOUSTON, Aug. 6 /PRNewswire-USNewswire/ -- Area reporters are invited to experience life on an extraterrestrial surface, without leaving their own hometown. The engineers, scientists and technicians who travel annually to Arizona for a simulated exploration mission as part of the Desert RATS - or Research and Technology Studies - tests are preparing for the September field tests by putting on a practice run in the Johnson Space Center Planetary Analog Test Site - also known as the rock...

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2010-08-04 10:45:00

Prairie dogs, once abundant in the Rocky Mountains and Great Plains, have been decimated in recent decades by plague "“ a virulent bacterial disease spread by fleas. Plague outbreaks periodically sweep through large prairie dog towns with thousands of inhabitants, killing virtually the entire population within months. Other prairie dogs move in and build a new colony, which eventually is wiped out when the disease returns. This pattern of re-colonization followed by devastation can...

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2010-07-26 08:20:00

Archaeological research in East Timor has unearthed the bones of the biggest rat that ever lived, with a body weight around 6 kg. The cave excavations also yielded a total of 13 species of rodents, 11 of which are new to science. Eight of the rats weighed a kilogram or more. "East Indonesia is a hot spot for rodent evolution. We want international attention on conservation in the area," CSIRO's Dr Ken Aplin says. "Rodents make up 40 per cent of mammalian diversity worldwide and are a key...

2010-05-24 13:49:10

Exposure to specific bacteria in the environment, already believed to have antidepressant qualities, could increase learning behavior according to research presented today at the 110th General Meeting of the American Society for Microbiology in San Diego. "Mycobacterium vaccae is a natural soil bacterium which people likely ingest or breath in when they spend time in nature," says Dorothy Matthews of The Sage Colleges in Troy, New York, who conducted the research with her colleague Susan...

2010-05-17 07:39:00

MOSCOW, May 17, 2010 /PRNewswire/ -- Animal Airways, the first global animal/pet flight management provider, is proud to announce the opening of their Eastearn Europe headquarters in Moscow, in order to reinforce the company's operation in Eastern Europe. Animal Airways' Pet Travel experts, together with veterinarians and customer support professionals, developed a unique service that promises to ease pet travel matters for the millions of families with pets who travel...

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2010-05-14 10:25:34

The findings provide clues to how our brains work Scientists from The Scripps Research Institute have found a specific chemical compound secreted by many predators that makes mice behave fearfully. The research helps scientists better understand animal behavior, and may eventually lead to new insights into how sensory information is processed in human brains. The research was published in the prestigious journal Cell on May 14, 2010. "We're interested in how the brain can be hardwired to...


Latest Rat Reference Libraries

Armored Rat, Hoplomys gymnurus
2012-07-17 14:40:46

The armored rat (Hoplomys gymnurus) is the only species within the Hoplomys genus. It is native to Latin America, with a range that extends from northern Honduras into northwestern Ecuador. It prefers a habitat at altitudes of up to 2,600 feet. It resides in burrows that can be up to 6.6 feet in length, and these burrows are typically located near a water source. The armored rat bears spines across its back, resembling a porcupine, and indeed, they are more related to the porcupine than...

Jamaican Rice Rat, Oryzomys antillarum
2012-07-04 11:09:29

The Jamaican rice rat (Oryzomys antillarum) is an extinct species of rodent that was once found in Jamaica. This rat is thought to have been a divergence of O. couesi, which can be found in mainland Central America. It is thought that this rat went extinct in the late 19th century due to habitat destruction and by predation and competition from introduced species like the mongoose and the brown rat. Elliott Coues noted two specimens of Oryzomys in his 1877 monograph about North American...

Sand Rat, Psammomys obesus
2012-06-20 16:14:18

The sand rat (Psammomys obesus), also known as the fat sand rat, is found in North Africa, as well as the Middle East. Its range extended from Mauritania to the Arabian Peninsula. It prefers habitats within sandy deserts, but it can be found within saline marsh areas and areas with rocky ground. It will burrow under vegetation like saltbushes, where rats can often be found foraging. There are many medical uses for the sand rat. Because of their tendency to get diabetes mellitus when fed a...

Maned Rat, Lophiomys imhausi
2012-05-23 13:57:55

The maned rat (Lophiomys imhausi), also known as the crested rat, has a range that includes Tanzania, Sudan, South Sudan, Kenya, and Uganda. It prefers a habitat located in highland forests and woodlands in these areas, while in Somalia and Ethiopia it prefers to reside in areas nearly at sea level. These rats will nest in hollow tree trunks or rocky areas, as well as within cliff-faces. The maned rat can reach a length of up to twenty-one inches, including the tail. The soft undercoat of...

Greater Cane Rat, Thryonomys swinderianus
2012-05-16 12:22:36

The greater cane rat (Thryonomys swinderianus) is one of two species of cane rats found in Africa. They prefer to reside in reed beds or riverbanks south of the Saharan Desert. They have adapted well to urbanization and will also live on plantations. The nocturnal greater cane rat lives in small groups that are led by one alpha male and will make their burrows underground or in grasses. The diet of this cane rat consists of cane plants and grasses. When frightened, the greater cane rat will...

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Word of the Day
mallemaroking
  • Nautical, the visiting and carousing of sailors in the Greenland ships.
This word is apparently from a confusion of two similar Dutch words: 'mallemerok,' a foolish woman, and 'mallemok,' a name for some persons among the crew of a whaling vessel.