Key words: Brown Rat
, Oregon, predation, Rattus norvegicus, Tamias townsendii, Townsend's Chipmunk
For comparison, this value is 20% in the brown rat
. Of course the skull measured by Trouessart might have belonged to another much older and perhaps larger specimen.
The maximum life span for a brown rat
is up to three years, but one is more common.
The Norway rat or brown rat
(Rattus norvegicus) is a case in point.
As a result, the Star Ledger reported: "The Senate yesterday passed a bill that would expand the list of activities exempted from the [law] to include the killing or disposal of a Norway brown rat
, black rat, and house mouse." The Ledger quoted the bill's sponsor, Joseph Palaia (Republican of Monmouth), defending the legislation: "'People who beat their pets, deprive them of water or food, or needlessly kill and mutilate their animals should be treated as animals.'"
But no....it was a big brown rat
," the chief White House correspondent of Fox News tweeted on Monday.
The brown rat
is the UK's most common, followed by the black rat.How often can rats breed?
THE best-known rat species are the black rat (Rattus rattus) and brown rat
The Brown Rat
(Rattus norvegicus) is an Old World rodent that is native to central Asia, but through inadvertent human transport has colonized every continent except Antarctica (Silver 1927).
So when I got home there was one nasty brown rat
in the garden and three cute desert rats in the house.
It is also an indigenous species which has been here for thousands of years, unlike the brown rat
, which is an immigrant that arrived in the 18th century due to human agency.
Like its brown rat
cousin, the grey squirrel is a great carrier of disease, especially to any reds in the neighbourhood and does immense damage to young trees and plants.