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Latest Old World rats and mice Stories

toothless rat
2012-08-23 21:19:53

Lee Rannals for redOrbit.com — Your Universe Online Imagine a rodent that doesn't come out of a U-shaped hole in your wall to eat cheese, simply because it is unable to craft such a home. Well, a new species of rat lives up to that thought. A species of near-toothless rat was found in Indonesia, living off earthworms and spending its time sucking and slurping instead of chewing or gnawing. The animal, paucidentomys vermidax, is the only rodent scientists have found out of the...

shutterstock_83761633
2012-07-12 12:41:44

redOrbit Staff & Wire Reports - Your Universe Online While it may sound like the plot for a low-budget fright-fest of a motion picture, the ongoing battle between giant rats and South American penguins on a Chilean island could turn into a real-life horror story for the birds and the environmental activists fighting to keep them from extinction. According to Eva Vergara of the Associated Press (AP), invading rodents with bodies upwards of eight inches in length have been eating...

Could The Naked Mole Rat Hold The Secret Of Longevity?
2012-07-03 11:20:45

redOrbit Staff & Wire Reports - Your Universe Online The naked mole rat is well-known for its longer lifespan, living on average for 30 years. The East African native, when compared to humans, shows little sign of decline due to aging, maintaining high activity, bone health, reproductive capacity, and cognitive ability throughout its lifetime. Now a collaborative of researchers in Israel and the United States is working to uncover the secret to the small mammal's long and very busy...

Yogurt-Eating Mice Have Larger Testicles
2012-05-07 08:36:43

Forget red meat -- a new Massachusetts Institute of Technology (MIT) study suggests that men trying to demonstrate their machismo might be better off eating yogurt. Why, you ask? Well, according to a May 4 report by Elie Dolgin of Scientific America, the researchers discovered that mice who were fed the dairy product were found to have a type of "mouse swagger" -- not to mention testicles that were approximately 5% and 15% heavier than those on typical or junk-food diets, respectively....

Rats Have Best Bite Of Rodent World
2012-04-30 07:36:42

Scientists at the University of Liverpool have found that mice and rats have evolved to gnaw with their front teeth and chew with their back teeth more successfully than rodents that 'specialize' in one or other of these biting mechanisms. Researchers designed a computer model to simulate the bite of rats to understand whether their skull shape or muscle arrangement was a major factor in their evolutionary success and global dominance, making them one of the most common pest species in the...

2012-04-05 21:08:21

TAU breeds population of lab mice with genetic diversity closer to humans With a 95 percent genomic similarity to humans, mice have long been used to learn about the genetic causes of human disease. Once researchers can shine a light on the genetic factors that cause disease in mice, they can start to develop prevention and treatment options to protect the human population. But this process, called genetic mapping, is a long and difficult road, made more challenging by the 5% difference...

2012-04-02 11:20:08

Nine out of 10 drugs successfully tested in mice and other animal models ultimately fail to work in people, and one reason may be traced back to a common fact of life for laboratory mice: they're cold, according to a researcher at the Stanford University School of Medicine. Laboratory mice, which account for the vast majority of animal research subjects, are routinely housed in chilly conditions, which may affect their well-being as well as the outcome of research studies, said Joseph...

2012-03-26 09:30:50

From miniature elephants to monster mice, and even Hobbit-sized humans, size changes in island animals are well-known to science. Biologists have long believed that large animals evolving on islands tend to get smaller, while small animals tend to get bigger, a generalization they call "the island rule." A new study by researchers at Duke University and the National Evolutionary Synthesis Center in Durham, NC puts that old idea to the test in island and mainland rodents. "Some of the...


Latest Old World rats and mice Reference Libraries

Striped Field Mouse, Apodemus agrarius
2012-07-27 12:43:51

The striped field mouse (Apodemus agrarius) has a range that extends from Eastern Europe to Japan, and includes Siberia and Taiwan. It prefers a habitat within cornfields and other agricultural fields or human populated areas, and forests. It has many synonyms, or other names, including Apodemus albostriatus given by Bechstein in 1801 and Apodemus volgensis given by Kuznetzov in 1944. This mouse can reach an average body length of up to 4.9 inches, with a tail length of up to 3.5 inches...

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...

Barbary Striped Grass Mouse, Lemniscomys barbarous
2012-06-25 17:15:04

The Barbary striped grass mouse (Lemniscomys barbarous) is native to northwest Africa. Its range includes Algeria, Tunisia, and coastal Morocco. It was thought that this range also included Sub-Saharan Africa, although the populations occurring here are now considered a distinct species known as Heuglin's Striped Grass Mouse. Along with Heuglin's and Hoogstral's Striped Grass Mouse, the Barbary striped grass mouse bears fur that is both darkly and lightly striped, while most other members...

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...

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Word of the Day
cenobite
  • One of a religious order living in a convent or in community; a monk: opposed to anchoret or hermit (one who lives in solitude).
  • A social bee.
This word comes from the Latin 'coenobium,' convent, which comes from the Greek 'koinobios,' living in community.
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