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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for atlanta being number two state with the most rats and mice #blamediddy
FPDJFLOW (Dj Flow The Coolest) Wed, 04 Nov 2009 19:13:23 -0000
for atlanta being number two state with the most rats and mice #blamediddy
Animal Exploitation Photo Gallery : Mice and Rats - Care2 News Network http://bit.ly/2rIQLj
money_guides (Matthew Lloyd) Wed, 04 Nov 2009 06:33:21 -0000
Animal Exploitation Photo Gallery : Mice and Rats - Care2 News Network http://bit.ly/2rIQLj
@CyanidexBeauty I almost cried, I'm so afraid of mice and rats
DizzDez (Desiree Lorick) Wed, 04 Nov 2009 05:49:01 -0000
@CyanidexBeauty I almost cried, I'm so afraid of mice and rats
#lordamercy RT @AlexBarron7: My sister is afraid of aliens and rats... I just showed her the intro to Biker Mice From Mars... lulz
seanpadilla (Sean P of C.Spaniels) Wed, 04 Nov 2009 03:16:08 -0000
#lordamercy RT @AlexBarron7: My sister is afraid of aliens and rats... I just showed her the intro to Biker Mice From Mars... lulz
@joannabirchler haha, maybe i was exaggerating a bit. the rats/mice are only in the apartment. and the exterminator has done his bit.
arv43 (Arvind Ashok) Tue, 03 Nov 2009 23:56:41 -0000
@joannabirchler haha, maybe i was exaggerating a bit. the rats/mice are only in the apartment. and the exterminator has done his bit.
@TracyOConnor Funny that the part where they eat mice/rats/people didn't scare you :) and "Alien" is NOT a kids movie, scary for a 15yo!
davidmtaylor (David M Taylor) Tue, 03 Nov 2009 22:25:37 -0000
@TracyOConnor Funny that the part where they eat mice/rats/people didn't scare you :) and "Alien" is NOT a kids movie, scary for a 15yo!

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