because it was so ugly
World War II world war 1 was called the trench warfare war. Rats in their millions infested trenches. There were two main types, the brown and the black rat. Both were despised but the brown rat was especially feared. Gorging themselves on human remains (grotesquely disfiguring them by eating their eyes and liver) they could grow to the size of a cat. I posted the link of the wikipedia article regarding in the related links box below.
a brown rat is a carnivore
A rat
R.a.t.s in their millions infested trenches. There were two main types, the brown and the black rat. Both were despised but the brown rat was especially feared. Gorging themselves on human remains (grotesquely disfiguring them by eating their eyes and liver) they could grow to the size of a cat. Men, exasperated and afraid of these rats (which would even scamper across their faces in the dark), would attempt to rid the trenches of them by various methods: gunfire, with the bayonet, and even by clubbing them to death. It was futile however: a single rat couple could produce up to 900 offspring in a year, spreading infection and contaminating food. The rat problem remained for the duration of the war (although many veteran soldiers swore that rats sensed impending heavy enemy shellfire and consequently disappeared from view).
The brown rat, also known as the Norway rat, is generally larger than the black rat, also known as the roof rat. Brown rats can weigh up to 500 grams, while black rats typically weigh around 150 grams.
it depends on the rat some rats are white some grey white and brown
The most common rat is the brown German rat.
'Ship Rat' is usually referring to a Black Rat.
There is no recognised species called a 'brown rat snake' - HOWEVER - Members of the Rat snake family are constrictors - not venomous.
A wharf rat is another name for a brown rat. A rat is a "rodent" and in the "Muridae" family and all rats are in the Genus "Rattus" A black rat is Rattus Rattus. A brown rat (also fancy/ lab rats) is Rattus Norvegicus
A kangaroo rat is brown, black and can sometimes be white.
They're a common rat also known as a sewer rat.