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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
Why newborn babies can't walk
Medicine & Health / Neuroscience
Dec 18, 2009 |
4.2 / 5 (13) |
15
(PhysOrg.com) -- The first steps of an infant is a real milestone in the development of all mammals including humans, but little is known about why some animals can walk soon after birth, while others need ...
Got smell? Research shows that accurate taste perception relies on a functioning olfactory system
Medicine & Health / Neuroscience
Dec 22, 2009 |
not rated yet |
0
As anyone suffering through a head cold knows, food tastes wrong when the nose is clogged, an experience that leads many to conclude that the sense of taste operates normally only when the olfactory system is also in good ...
Exposure to young triggers new neuron creation in females exhibiting maternal behavior
Medicine & Health / Neuroscience
Dec 17, 2009 |
5 / 5 (2) |
0
Maternal behavior itself can trigger the development of new neurons in the maternal brain independent of whether the female was pregnant or has nursed, according to a study released by researchers at Tufts University's Cummings ...
Study Finds Treatment With Anabolic Hormone May Enhance Local Bone Regeneration
23 hours ago |
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(PhysOrg.com) -- In research that could open new avenues of investigation in the prevention and treatment of fractures, in bone regeneration and tissue engineering, scientists from Yale School of Medicine ...
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Discovering addiction clues could help smokers kick the habit
Dec 21, 2009 |
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(PhysOrg.com) -- If you've ever tried to quit smoking, understanding how you got hooked in the first place probably seems irrelevant. But University of Nebraska-Lincoln psychologist Rick Bevins believes those ...
Scientists discover how the brain encodes memories at a cellular level
4 hours ago |
5 / 5 (6) |
1
Scientists at UC Santa Barbara have made a major discovery in how the brain encodes memories. The finding, published in the December 24 issue of the journal Neuron, could eventually lead to the development ...
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