Rat
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Stenomys Thomas, 1910
Rats are various medium-sized, long-tailed rodents of the superfamily Muroidea. "True rats" are members of the genus Rattus, the most important of which to humans are the black rat, Rattus rattus, and the brown rat, Rattus norvegicus. Many members of other rodent genera and families are also called rats and share many characteristics with true rats.
Rats are typically distinguished from mice by their size; rats are generally large muroid rodents, while mice are generally small muroid rodents. The muroid family is very large and complex, and the common terms rat and mouse are not taxonomically specific. Generally, when someone discovers a large muroid, its common name includes the term rat, while if it is small, the name includes the term mouse - scientifically, the terms are not confined to members of the Rattus and Mus genera. Compare the taxonomic classification of the Pack rat and Cotton mouse.
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News tagged with rats
Nerve-cell transplants help brain-damaged rats fully recover lost ability to learn
Medicine & Health / Neuroscience
Dec 09, 2009 |
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Nerve cells transplanted into brain-damaged rats helped them to fully recover their ability to learn and remember, probably by promoting nurturing, protective growth factors, according to a new study.
Scientists rescue visual function in rats using induced pluripotent stem cells
Dec 03, 2009 |
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An international team of scientists has rescued visual function in laboratory rats with eye disease by using cells similar to stem cells. The research shows the potential for stem cell-based therapies to treat ...
CPR is successful without mouth-to-mouth, but not without oxygen
Nov 30, 2009 |
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People can survive cardiac arrest if they receive only chest compressions during attempts to revive them - as advised by the current American Heart Association guidelines. But they cannot survive without access to oxygen ...
Researchers create first transgenic prairie voles
Dec 01, 2009 |
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Researchers at the Yerkes National Primate Research Center, Emory University, have successfully generated the first transgenic prairie voles, an important step toward unlocking the genetic secrets of pair bonding. The future ...
In cancer-ridden rats, loneliness can kill
Dec 07, 2009 |
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Socially isolated female rats develop more tumors -- and tumors of a more deadly type -- than rats living in a social group, according to researchers at Yale University and the University of Chicago.
Rodent smoke screen
Medicine & Health / Psychology & Psychiatry
Dec 08, 2009 |
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Rats passively exposed to tobacco smoke become dependent on nicotine, according to a new study by Dr. Adrie Bruijnzeel and colleagues from the University of Florida in the US. Their findings of how rats' brains respond to ...
