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The fancy rat (Rattus norvegicus domestica) is the domesticated form of Rattus norvegicus, the brown rat, [1] and the most common species of rat kept as a pet.The name fancy rat derives from the use of the adjective fancy for a hobby, also seen in "animal fancy", a hobby involving the appreciation, promotion, or breeding of pet or domestic animals.
Rat-baiting is a blood sport that involves releasing captured rats in an enclosed space with spectators betting on how long a dog, usually a terrier and sometimes referred to as a ratter, takes to kill the rats. Often, two dogs competed, with the winner receiving a cash prize.
Black rats (or their ectoparasites [28]) can carry a number of pathogens, [29] of which bubonic plague (via the Oriental rat flea), typhus, Weil's disease, toxoplasmosis and trichinosis are the best known. It has been hypothesized that the displacement of black rats by brown rats led to the decline of the Black Death.
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Pet rats do not pose any more of a risk of zoonotic diseases than pets such as cats or dogs. [21] Tamed rats are generally friendly and can be taught to perform selected behaviors. Selective breeding has brought about different color and marking varieties in rats. Genetic mutations have also created different fur types, such as rex and hairless.
Brown rats living near a hatchery in West Virginia catch fingerling fish. [36] Some colonies along the banks of the Po River in Italy dive for mollusks, [37] [38] a practice demonstrating social learning among members of this species. [39] Rats on the island of Norderoog in the North Sea stalk and kill sparrows and ducks. [40]
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Laboratory rats or lab rats are strains of the rat subspecies Rattus norvegicus domestica (Domestic Norwegian rat) which are bred and kept for scientific research. While less commonly used for research than laboratory mice , rats have served as an important animal model for research in psychology and biomedical science , [ 1 ] and "lab rat" is ...