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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 become sexually mature at age 6 weeks, but reach social maturity at about 5 to 6 months of age. The average lifespan of rats varies by species, but many only live about a year due to predation. [11] The black and brown rats diverged from other Old World rats in the forests of Asia during the beginning of the Pleistocene. [12]
Rats are opportunistic eaters; in the wild, rats are herbivores, as they will scavenge for seeds, plants and fruits. Due to a lack of easily accessible produce in the city, city rats will eat nearly anything, including trash and meat. Domestic rats live slightly longer than wild rats, with life spans of around two years. [16]
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 ...
On average, captive animals (especially mammals) live longer than wild animals. This may be due to the fact that with proper treatment, captivity can provide refuge against diseases, competition with others of the same species and predators. Most notably, animals with shorter lifespans and faster growth rates benefit more from zoos than animals ...
Rebecca MacMillan weighs in, "The average lifespan of bearded dragons is eight to 12 years, though some may live less than this and others may live a bit longer!"
The black rat was present in prehistoric Europe and in the Levant during postglacial periods. [9] The black rat in the Mediterranean region differs genetically from its South Asian ancestor by having 38 instead of 42 chromosomes. [10] Its closest relative is the Asian house rat (R. tanezumi) from Southeast Asia. The two diverged about 120,000 ...
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