Guinea pig, (Cavia porcellus), a trained types of South American rat having a place with the cavy family (Caviidae). It takes after different cavies in having a vigorous body with short appendages, huge head and eyes, and short ears. The feet have smooth bottoms and short sharp hooks. There are four toes on the forefeet and three on the rear feet. A few types of tamed guinea pigs exist, which are once in a while assembled by coat surface and hair length. The term guinea pig is additionally utilized casually to allude to an individual who fills in as a guinea pig in an examination.
Among rodents, local guinea pigs are genuinely huge, gauging 500 to 1,500 grams (around 1 to 3 pounds) and having a body 20 to 40 cm (8 to 16 inches) in length. The tail isn't noticeable remotely. There is a peak of longer hairs at the neck, however length and surface of the hide differ from smooth (short or long) to coarse and short or long and plush. Shading is incredibly factor: the coat might be white, cream, tan, ruddy or chocolate darker, dark, or a joined example.
Guinea pigs eat vegetation and don't expect water to drink whenever provided with adequately soggy sustenance, however they should have water whenever sustained dry business nourishment. They breed all year in imprisonment. Females endure to 13 youthful per litter (4 is normal); incubation takes 68 days. In spite of the fact that the youthful can rush about and eat strong sustenance the day they are conceived, they are not completely weaned for around three weeks. Females develop in two months, guys in three, and hostage guinea pigs satisfy eight years, albeit three to five is run of the mill.
No normal populace of this species exists in nature. Guinea pigs were evidently tamed over 3,000 years back in Peru, concurring with people's change from a roaming to a rural way of life. The Incas kept guinea pigs, and the creatures were reared during a similar period by different individuals who lived along the Andes Mountains from northwestern Venezuela to focal Chile. These rodents remain a practical sustenance hotspot for the local people groups of Ecuador, Peru, and Bolivia, who either keep them in their homes or enable them to rummage openly both inside and out. Guinea pigs were taken to Europe in the sixteenth century, and since the 1800s they have been prevalent as pets. They are likewise utilized globally as lab creatures for investigations of life structures, sustenance, hereditary qualities, toxicology, pathology, serum improvement, and other research programs.
The starting point of the casual name guinea pig is a subject of much discussion. The initial segment of the name may have been gotten from the cost of the creature in sixteenth and seventeenth century England—that is, potentially one guinea—or it might have emerged from the creatures' being conveyed to European markets after first being moved to ships in ports in Guinea. The moniker could likewise have begun with a misspoke type of the word Guiana, the name of the locale where some guinea pigs were gathered. Another conceivable derivation is from the name of the class of boats—the Guineamen—that moved the creature. These were vessels that made port in West Africa as a feature of the transoceanic slave exchange. The second piece of the name likewise started with Europeans, who thought about the screeching sound the creature made (just as the flavor of its cooked substance) to that of a pig.
There are five nondomesticated individuals from the class Cavia that are additionally called guinea pigs: the Brazilian guinea pig (C. aperea) found from Colombia, Venezuela, and the Guianas south to northern Argentina; the sparkly guinea pig (C. fulgida), occupying eastern Brazil; the montane guinea pig (C. tschudii), extending from Peru to northern Chile and northwestern Argentina; the more noteworthy guinea pig (C. magna), happening in southeastern Brazil and Uruguay; and the Moleques do Sul guinea pig (C. intermedia), which is restricted to an island in the Moleques do Sul archipelago off the southern shore of Brazil. Rearing and sub-atomic examinations propose that the residential guinea pig was gotten from one of the wild Brazilian, sparkling, or montane species.