Brown Rat

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Brown Rat

 

(Rattus norvegiens), a mammal of the order Rodentia.

References in periodicals archive ?
Animal used as the research subjects are healthy white rats line SD (Rattus norwegius L.) with the body weight of 200-250 g and aged 2-3 months delivered from Husbandry Department of East Java Province Government.
Infection of white rats peritoneal macrophages wiht Toxoplasma gondii (Coccidia: Sarcocystidae) after Trypanosoma lewisi (Kinetoplastida: Trypanosomatidae) infection.
The first is that, in education, lacking the white rat and the fruit fly as experimental populations, random assignment is often impossible, and since humans -- beings both sentient and volitional -- are involved, random assignment might itself influence outcomes.
They presented a white rat to Albert and, whenever the boy reached for the animal, they struck a metal pipe with a hammer.
And your blessing increases if you spot a rare white rat among a sea of furry browns.
When my sins and kindnesses are weighed by Osiris, I hope to see a white rat on the scales.
The operator covers a white rat with a lid after placing it in the center of a colorful spinning wheel, Meinhardt said.
Arabidopsis thaliana has proven to be the "white rat" of the plant world.
He ignored his fellow tenants - preferring his pet white rat for company instead.
Other works include a critically acclaimed collection of short stories, White Rat, and a book of poetry, Song for Anninho, as well as a book of criticism, Liberating Voices.
Dad, the maid and her black husband are all involved in bizarre goings-on sparked by the arrival of a pet white rat.