News tagged with rodent
Scientists discover gene that 'cancer-proofs' rodent's cells
(PhysOrg.com) -- Despite a 30-year lifespan that gives ample time for cells to grow cancerous, a small rodent species called a naked mole rat has never been found with tumors of any kind—and now biologists ...
Oct 26, 2009 |
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Viral phenomenon: Ancient microbe invaded human DNA
Humans carry in their genome the relics of an animal virus that infected their forerunners at least 40 million years ago, according to research published Wednesday by the British science journal Nature.
Jan 06, 2010 |
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Spectacular mammal rediscovered after 113 years -- first ever photographs taken
(PhysOrg.com) -- A unique and mysterious guinea-pig-sized rodent, not seen since 1898 despite several organized searches, bizarrely showed up at the front door of an ecolodge at a nature reserve in Colombia, ...
May 19, 2011 |
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New research challenges evolutionary theory
(PhysOrg.com) -- New research from the University of Reading overturns conventional views on the nature of evolution, arguing that mammals did not develop into their many different forms in one early and rapid ...
Oct 20, 2011 |
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Can't focus? Maybe it's the wrong time of month
Feeling a little sluggish and having trouble concentrating? Hormones might be to blame according to new research from Concordia University published in the journal Brain and Cognition. The study shows that high estrogen levels ...
Medicine & Health / Neuroscience
Sep 24, 2010 |
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Magnetic nanochain detonates chemo barrage inside tumors
Medicine-toting nanochains slip into tumors and explode a chemotherapy drug into hard-to-reach cores of cancer, engineers and scientists at Case Western Reserve University report.
Nanotechnology / Bio & Medicine
Apr 18, 2012 |
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Sniffer 'hero rats' saving lives in war zones
A baby rat in a tiny red and black harness twitches its pointed nose incessantly, probing a grassy field where it is being trained by a pioneering Dutch NGO to smell out deadly landmines.
Nov 08, 2010 |
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Helping your fellow rat: Rodents show empathy-driven behavior
The first evidence of empathy-driven helping behavior in rodents has been observed in laboratory rats that repeatedly free companions from a restraint, according to a new study by University of Chicago neuroscientists.
Dec 08, 2011 |
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Malaysia rescues rare golden cat from pot
Malaysian wildlife authorities said Wednesday they rescued a rare Asian golden cat, which was caught in a snare and destined for the cooking pot.
Nov 10, 2010 |
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Tiny teeth are new mouse species, a rare 'living fossil'
(PhysOrg.com) -- Tiny fossil teeth discovered in Inner Mongolia are a new species of birch mouse, indicating that ancestors of the small rodent are much older than previously reported, according to paleontologist ...
Other Sciences / Archaeology & Fossils
May 24, 2011 |
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Some mammals used highly complex teeth to compete with dinosaurs: study
Conventional wisdom holds that during the Mesozoic Era, mammals were small creatures that held on at life's edges. But at least one mammal group, rodent-like creatures called multituberculates, actually flourished ...
Other Sciences / Archaeology & Fossils
Mar 14, 2012 |
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Raw sewage: Home to millions of undescribed viruses
Biologists have described only a few thousand different viruses so far, but a new study reveals a vast world of unseen viral diversity that exists right under our noses. A paper to be published Tuesday, October 4 in the online ...
Oct 03, 2011 |
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Plague came from China: scientists
The first outbreak of plague occurred in China more than 2,600 years ago before reaching Europe via Central Asia's "Silk Road" trade route, according to a study of the disease's DNA signature.
Nov 01, 2010 |
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Researchers find mice cages alter brains
Researchers at the University of Colorado's Anschutz Medical Campus have found the brains of mice used in laboratories worldwide can be profoundly affected by the type of cage they are kept in, a breakthrough that may require ...
Jul 16, 2010 |
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Predators key to sustainable farming
Barn owls have emerged as the unlikely heroes in the fight against climate change, saving Malaysian farmers more than money, UQ PhD Student Chong Leong Puan has found.
Aug 21, 2009 |
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Rodent
Sciuromorpha Castorimorpha Myomorpha Anomaluromorpha Hystricomorpha
Rodentia is an order of mammals also known as rodents, characterised by two continuously growing incisors in the upper and lower jaws which must be kept short by gnawing.
Forty percent of mammal species are rodents, and they are found in vast numbers on all continents other than Antarctica. Common rodents include mice, rats, squirrels, chipmunks, gophers, porcupines, beavers, hamsters, gerbils, guinea pigs, degus, chinchillas, prairie dogs, and groundhogs. Rodents have sharp incisors that they use to gnaw wood, break into food, and bite predators. Most eat seeds or plants, though some have more varied diets. Some species have historically been pests, eating seeds stored by people and spreading disease.
For more information about Rodent, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
