Brazilian Guinea Pig

Brazilian Guinea Pig

Cavia aperea

Silhouette: T. Michael Keesey · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability Insufficient data
at Madidi National Park
1 Verified sightings at Madidi National Park From 2019 to 2026
106 Verified sightings across all 8 parks From 2019 to 2026
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Brazilian Guinea Pig

The Brazilian guinea pig (Cavia aperea) (preá in Portuguese) is a wild guinea pig species found in Argentina, Brazil, Bolivia, Colombia, Ecuador, Guyana, Paraguay, Uruguay and Venezuela. Cavia aperea has been successfully mated to the domestic guinea pig, Cavia porcellus, though many females become infertile in successive generations.

Brazilian guinea pigs are mainly diurnal animals and are narrower and longer than domesticated guinea pigs. This is a medium-sized guinea pig with an adult length of about 272 mm (11 in) and a weight of 637 grams (22.5 oz). The tail, at around 2.4 mm, is almost non-existent. The dorsal fur is dark olive-brown mixed with brown and black, and the underparts are a pale grey or yellowish-grey.

Its karyotype has 2n = 64 and a reportedly variable FN of 116 or 128 for C. a. aperea and 128 for C. a. pamparum. The Brazilian guinea pig has a wide distribution in South America at altitudes between 400 and 3,000 metres (1,300 and 9,800 ft) above sea level. Its range extends from Colombia, Ecuador and Venezuela to areas in the north of Argentina. Its typical habitat is open grassland and savannah.

Cavia aperea is... Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Iberá National Park 🇦🇷 Argentina
~40%
2 Chingaza National Natural Park 🇨🇴 Colombia
~30%
3 Iguazú National Park 🇦🇷 Argentina
~20%
4 Iguaçu National Park 🇧🇷 Brazil
~20%
5 Chapada dos Guimarães National Park 🇧🇷 Brazil
Insufficient data
6 Parque Estadual Encontro das Águas 🇧🇷 Brazil
Insufficient data
7 Madidi National Park 🇧🇴 Bolivia
Insufficient data
8 Itatiaia National Park 🇧🇷 Brazil
Insufficient data
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