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The brown rat (Rattus norvegicus), also known as the common rat, street rat, sewer rat, wharf rat, Hanover rat, Norway rat and Norwegian rat, is a widespread species of common rat. One of the largest muroids, it is a brown or grey rodent with a body length of up to 28 cm (11 in) long, and a tail slightly shorter than that. It weighs between 140 ...
Brown rat: Rattus norvegicus: Introduced Statewide Black rat: Rattus rattus: Introduced Statewide Family: Sciuridae. Eight species of squirrels, chipmunks, and ...
The best-known rat species are the black rat (Rattus rattus) and the brown rat (Rattus norvegicus). This group, generally known as the Old World rats or true rats, originated in Asia . Rats are bigger than most Old World mice , which are their relatives, but seldom weigh over 500 grams ( 17 + 1 ⁄ 2 oz) in the wild.
Brown rats are the undisputed winners of the real rat race. New research suggests that they crawled off ships arriving in North America earlier than previously thought and out-competed rodent ...
Historical anecdotes back up this finding, describing the near disappearance of black rats from cities in the 1830s. Today, both types of rats exist in North American cities, though brown rats are more prevalent. Some urban centers are especially overrun. New York City, for example, last year hired a “rat czar ” to tackle a growing problem ...
By the 1750s, brown rats were in New York City, destined to be subway kings. Ironically, for how widespread it is, the brown rat is a homebody. "In its natural habitat, it has a very small home ...
Brown rat, Rattus norvegicus (introduced) Distribution: Maine, New Hampshire, Vermont, Massachusetts, Connecticut, and Rhode Island. Black rat, Rattus rattus (introduced) Distribution: extreme southern Maine, southeastern New Hampshire, eastern Massachusetts, all but northwestern Connecticut, and Rhode Island. House mouse, Mus musculus (introduced)
The latest chapter of New York’s centuries-long war on rats has the city throwing everything at the problem—from enforcing new garbage laws, to enlisting bands of vigilante rat hunters, to ...