They belong to the same family Muridae, but cotton rats are in a different genus, called Sigmodon, while Norway rats are in the genus Rattus. ... A breed, according to Webster's Dictionary again, is a group of animals presumably related by descent from common ancestors and visibly similar in most characteristics.
www.ratbehavior.org/RatSpecies.htm www.ratbehavior.org/RatSpecies.htm
Rat - Wikipedia, the free encyclopedia
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...
en.wikipedia.org/wiki/Rat
common house rats; upper incisors have a beveled edge [syn: Rattus] ... Search another word or see genus rattus on Thesaurus | Reference ... Rattus norvegicus...
dictionary.reference.com/browse/genus+rattus dictionary.reference.com/browse/genus+rattus
The genus Rattus has two related families of satellite DNA: Satellite I ... revealed several characteristics pertinent to the biological mechanisms that ...
nar.oxfordjournals.org/cgi/reprint/12/2/973.pdf
"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.
www.freebase.com/view/en/rat www.freebase.com/view/en/rat
"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, R. norvegicus. This genus is part of the family Muridae (Old World rats and mice). ... 1 General rat characteristics...
www.newworldencyclopedia.org/entry/Rat www.newworldencyclopedia.org/entry/Rat
Norway rats (Rattus norvegicus) are originally native to northern China. Following a series of introductions, the species had found its way to Eastern Europe by the early eighteenth century. By the year 1800, they occurred in every European country.
animaldiversity.ummz.umich.edu/site/accounts/informatio... animaldiversity.ummz.umich.edu/site/accounts/information/Rattus_norvegicus.html
Rats of the genus Rattus are reservoir hosts for pathogenic Bartonella species: an Old World origin for a New World disease? ... Genetic and ecologic characteristics of Bartonella communities in rodents in southern China.
www.ncbi.nlm.nih.gov/pubmed/10353885
The isolation and structural organization of two overlapped phage clones of the glutathione transferase A3 gene of the Rattus sp. (rGSTA3 gene) was recently reported by our laboratory (Fotouhi-Ardakani and Batist 1999 ). During the course of analysis of the exon/intron splicing junctions of the rGSTA3 gene,
mbe.oxfordjournals.org/cgi/content/full/17/2/331
GENETIC AND ECOLOGIC CHARACTERISTICS OF BARTONELLA COMMUNITIES ..... genus Rattus are reservoir hosts for pathogenic Bartonella spe- ...
www.ajtmh.org/cgi/reprint/66/5/622.pdf