For more information on the Living With Wildlife series, contact the WDFW Wildlife Program 360-902-2515 Living with Wildlife Rats Figure 1. The Norway rat has a long, tapering, nearly naked tail. The Best Of Pastor Troy Vol 1 Zipper more.

Rats and mice: what's the difference? What do the terms rat and mouse mean? Differences between Norway rats and house mice; How can I tell rats and mice apart? Read the differences and similarities between mice and rats. Learn about the problems they can cause. For professional control call Trutech. Have you ever wondered whether you're dealing with rats or mice?

(Photo by Ron Austing.) • • • • • • • • • Washington is home to both native and non-native rats, the latter sometimes being referred to as Old World rats. Native to the Orient, Asia Minor, and Siberia, Old World rats were introduced to North America on the ships of the early voyagers. These highly adaptable rats continue to enter new regions on board ships, trains, and trucks carrying freight and other goods around the world.

In Washington, they are now found wherever humans have established permanent residence or industry. Old World rats include the Norway rat ( Rattus norvegicus, Fig. 1), also known as the brown rat, sewer rat, or wharf rat, and the black rat ( Rattus rattus), also called the roof rat.