Cavy good


Cavy (family Caviidae), any of 14 species of South American rodents comprising guinea pigs, maras, yellow-toothed cavies, mountain cavies, and rock cavies. All except the maras have robust bodies, short limbs, large heads and eyes, and short ears. There are four digits on the forefeet but three on the hind feet, and the soles of the feet are hairless. The claws are sharp and the tiny tail is inconspicuous except in the rock cavy, which has blunt claws and a short tail projection. Most cavies are moderately large, weighing 200 to 1,500 grams (0.4 to 3.3 pounds) with a body 15 to 40 cm (6 to 16 inches) long. Their dense, coarse fur ranges from gray to brown on the upperparts and whitish to gray on the underparts.

Maras resemble hares in having large ears and eyes, a blunt muzzle, and long, slender legs. They are larger than the other cavies, weighing 9 to 16 kg (20 to 35 pounds) with a body 45 to 75 cm long and a tiny tail of up to 5 cm. Their front claws are sharp, but those on the hind feet are hooflike; the dense fur is gray with whitish underparts and has a crisp texture.

Although the rock cavy climbs trees to forage, cavies are terrestrial and colonial. They are active during the day (diurnal) or during early morning and evening (crepuscular). They den at night in burrows that they have excavated or that other mammals have abandoned; some species also find shelter in rock crevices, under brush piles, or in dense vegetation. Their diet is generally any available vegetation, such as grasses, forbs, leaves, and fruit. Even in cold environments, cavies do not hibernate. Breeding seasons vary among species, with gestationperiods ranging from 50 to 93 days. Most cavies bear litters of 1 to 4 young, but wild guinea pigs have up to 5 young, and the domestic guinea pig may bear from 1 to 13 young per litter.

Cavies range from Venezuela to southern Patagonia but are not found in western Chile or most of the Amazon River basin. Guinea pigs occupy open grasslands,forest margins, swamps, and rocky areas. The rock cavy dwells among boulders in dry areas of eastern Brazil, whereas yellow-toothed and mountain cavies live in grassy, rocky, and brushy habitats in the Andes Mountains from Peru to Argentina at elevations of up to 4,000 metres (13,000 feet). Maras inhabit the open landscapes of semiarid grasslands, thorn scrub, and temperate steppes from Bolivia through Argentina and southern Paraguay.


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