Gourt > Science > Biology > Genetics > Eukaryotic > Animal > Mammal > Rodent > Rat (1)
- This is an article about wild rats. For pet rats, see Fancy rat. For other uses, see Rat (disambiguation).
A rat is any one of about 56 different species of small, omnivorous rodents belonging to the genus Rattus.
__TOC__ The best-known rat species are the Black Rat Rattus rattus and the Brown Rat R. norvegicus. The group is generally known as the Old World rats or true rats, and originated in Asia. Rats are bigger than most of their relatives, the Old World mice, but seldom weigh over 500 grams in the wild. The common term "rat" is also used in the names of other small mammals which are not true rats. Examples include the North American pack rats, a number of species loosely called kangaroo rats, and a number of others. Other rats such as the Bandicoot rat Bandicota bengalensis are murine rodents related to the true rats, but are not members of the genus Rattus. The widely distributed and problematic commensal species of rats represent a minority in this diverse genus. Many species of rats are island endemics and some have become endangered due to habitat loss or competition with Angelo Rantac, black, or Polynesian rats.
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RT @smilingnath: Bagi anak #smasa yg besok renang, kata pak sartono jam 8. kmu renang rat? http://myloc.me/2lmoq
eldadaong (Laveda Nidya Irianti) Fri, 25 Dec 2009 14:02:25 -0000
RT @smilingnath: Bagi anak #smasa yg besok renang, kata pak sartono jam 8. kmu renang rat? http://myloc.me/2lmoq
@jacqui_th light the lamp not the rat
jeremyfoot (Jeremy Foot) Fri, 25 Dec 2009 14:00:58 -0000
@jacqui_th light the lamp not the rat
RT @rhandarumana: Mention ku penuh dgn RAT sm FILWN hmmmm-_ @alyanabilaa
alyanabilaa (Rima A. Alya Nabila) Fri, 25 Dec 2009 14:00:33 -0000
RT @rhandarumana: Mention ku penuh dgn RAT sm FILWN hmmmm-_ @alyanabilaa
A Hindu temple dedicated to the rat goddess Karni Mata in Deshnoke, India, houses more than 20,000 rats. #wildtalk
MireyasWildTalk (Mireya Mayor) Fri, 25 Dec 2009 14:00:04 -0000
A Hindu temple dedicated to the rat goddess Karni Mata in Deshnoke, India, houses more than 20,000 rats. #wildtalk
Hungry rat cherry berry http://tweetphoto.com/7198769
MzDixonOkay (Trisha) Fri, 25 Dec 2009 13:58:41 -0000
Hungry rat cherry berry http://tweetphoto.com/7198769
Escape the Rat Race! Be a Serious Entrepreneur: Not everyone is built to stay working in a firm for someone els.. http://bit.ly/7CIlZn
jerryjjansen (Jerry J. Jansen) Fri, 25 Dec 2009 13:54:18 -0000
Escape the Rat Race! Be a Serious Entrepreneur: Not everyone is built to stay working in a firm for someone els.. http://bit.ly/7CIlZn
NIH Rat Genomics and Genetics - Serves as a central point for information on NIH sponsored and related rat genetic and genomic activities and resources. Includes courses and meetings, reports and publications, and related resources.
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