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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.
Rats are also associated with human dermatitis because they are frequently infested with blood feeding rodent mites such as the tropical rat mite (Ornithonyssus bacoti) and spiny rat mite (Laelaps echidnina), which will opportunistically bite and feed on humans, [57] where the condition is known as rat mite dermatitis.
The new genome rat assembly, mRatBN7.2, was generated by the Darwin Tree of Life Project at the Wellcome Sanger Institute and has been accepted into the Genome Reference Consortium. mRatBN7.2 was derived from a male BN/NHsdMcwi rat that is a direct descendant of the female BN rat previously sequenced.
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 .
The San Bernardino kangaroo rat follows the same body plan as Dipodomys merriami and other kangaroo rat species: large hind feet for jumping, long tail for balance while jumping, cheek pouches for foraging, and so on. Its body is about 95 millimeters (3.7 inches) long, with a total length of 230–235 mm (9.1–9.3 in).
The Dulzura kangaroo rat was at one time thought to be conspecific with the agile kangaroo rat (Dipodomys agilis) but the two are now recognised as being separate species; there is significant differences between them in their morphology, and their chromosome counts differ, with D. agilis having a karyotype of 2n=62 and D. simulans having 2n=60.
The brown rat (Rattus norvegicus), also known as the common rat, street rat, sewer rat, wharf rat, Hanover rat, Norway rat and Norwegian rat, is a widespread species of common rat. One of the largest muroids, it is a brown or grey rodent with a body length of up to 28 cm (11 in) long, and a tail slightly shorter than that. It weighs between 140 ...
Rhabdomys is a largely Southern African genus of muroid rodents slightly larger than house mice.They are known variously as striped or four-striped mice or rats.Traditionally the genus has been seen as a single species, Rhabdomys pumilio, though modern evidence on the basis of karyotype and mtDNA analysis suggests that it comprises two or more species and subspecies. [1]