单词	brown rat
释义	brown rat noun : a common domestic rat (Rattus norvegicus) that has been introduced worldwide called also Norway rat Example Sentences Recent Examples on the Web From his bedroom window, Mr. Matallana-Puerto saw that the brown rat accounted for 88 percent of all animal visits to feijoa flowers. New York Times, 22 June 2022 The extinct animal is also closely related to a living rat species, sharing around 95 percent of its genome with the Norway brown rat, according to the study. NBC News, 9 Mar. 2022 Seoul spreads among and from the common brown rat—sometimes called a sewer rat, wharf rat, or Norway rat. Beth Mole, Ars Technica, 4 Mar. 2022 Some people speculate that the brown rat saved us from the plague. Sarah Zhang, The Atlantic, 26 Apr. 2021 Pack rats, as well as their cousins the black and brown rats, don’t just collect sticks and seeds. Sadie Witkowski, Smithsonian, 15 Nov. 2019 For comparison purposes, the modern brown rat is less than one foot in length and weighs approximately 8 ounces. Fox News, 15 Feb. 2020 The dominant rat in New York City is the Norway rat, Rattus norvegicus, also known as the brown rat. Charlie Hamilton James, National Geographic, 17 June 2019 Rattus norvegicus - the brown rat - is a destructive force in much of the world, wreaking ecological havoc, contaminating crops, vandalizing property and spreading as many as 35 diseases. Author: Amanda Coletta, Anchorage Daily News, 28 Sep. 2019 See More Word History First Known Use 1737, in the meaning defined above Medical Definition brown rat noun : a common domestic rat of the genus Rattus (R. norvegicus) that has been introduced worldwide called also Norway rat
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