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What is a Rat? | |
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- A rat is a domestic rodent of the Rattus species.
- There are more than 12 species of rattus, but only the Norway and Roof rats threaten Alberta’s rat free status.
Norway Rat, Brown Rat, Sewer Rat
Approximately 22 cm body length, light brown, small ears, tail not as long as body.
Roof Rat, Black Rat, Ship Rat
Approximately 20 cm body length, dark brown, large ears, tail longer than body.
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For more information about the content of this document, contact Phil Merrill.
This document is maintained by Karen Hladych.
This information published to the web on May 30, 2013.
Last Reviewed/Revised on May 11, 2016.
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