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Brown rat - Wikipedia
褐家鼠 - 百度百科
褐鼠 - 维基百科,自由的百科全书
沟鼠(鼠科动物)_百度百科
ADW: Rattus norvegicus: INFORMATION
The evolutionary history of wild and domestic brown rats
brown rat - Encyclopedia Britannica
The origins of the domesticate brown rat (Rattus norvegicus) and …
Norway rat | Smithsonian's National Zoo and Conservation Biology Institute
Brown Rat - Facts, Diet, Habitat & Pictures on Animalia.bio