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Arca

Southern viscacha

Lagidium viscacia

Conservation status IUCN: Least concern· LC
Southern viscacha (Lagidium viscacia)
Photograph from Wikimedia Commons · Wikipedia article (it)

Where the name comes from

Lagidium is “little hare”, a diminutive of the Greek lagṓs: whoever sees it sitting on a rock with long ears and a curled tail thinks of a rabbit with a squirrel’s tail, and is wrong twice over — it is related to the chinchilla. Viscacia repeats in the epithet the Quechua name wisk’acha.

Facts

Group
Mammals · Mammalia
Order
Rodents
Habitat
Andean scree and rock faces, between 2,500 and 5,000 m
Range
The Andes of Peru, Bolivia, Chile and Argentina
Size
30–45 cm, tail 20–40 cm, 1–3 kg
Diet
Tough grasses, mosses, lichens
Lifespan
19 years in captivity

Characteristics

  • 01

    It leaps among the rocks with precision, never digging burrows of its own.

  • 02

    It lives in colonies that spend the middle hours of the day sunbathing.

  • 03

    Its fur is extremely dense, second only to the chinchilla’s.

What sets it apart

In the Andes its presence marks a rock face that does not freeze: the colonies occupy only slopes facing the morning sun, where the rock stores heat, and the crevices they choose stay several degrees above the outside air. Anyone looking for viscachas at five thousand metres does not study the vegetation but the aspect of the cliff. It is thermoregulation achieved by choosing an address rather than by insulating the body.

Next species

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