Rats
| Rats Fossil range: Early Pleistocene – Recent | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 The common Brown Rat (Rattus norvegicus) | ||||||||||||||||
| Scientific classification | ||||||||||||||||
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| Species | ||||||||||||||||
50 species; see text | ||||||||||||||||
| Synonyms | ||||||||||||||||
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.
topRats
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 ...
Rat - Wikipedia, the free encyclopedia
The brown rat, common rat, Hanover rat, Norway rat, Norwegian rat, or wharf rat (Rattus norvegicus) is one of the best known and most common rats, and also one of the largest.
Brown Rat - Wikipedia, the free encyclopedia
RATS seeks to further the art and science of amateur radio.
Richmond Amateur Telecommunications Society - Founded 1972
What you need toknow about deciding on a rat as a pet - life span, size, and characteristics. ... Rat Facts. Average life span of 2-3 years. Length: body 9-11 inches; tail 7-9 ...
Rats as Pets
Articles about the behavior of rats, their biology and the sensory world they live in.