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Capybara

species of large semiaquatic rodent in the cavy family

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 23, 2026
Entity authorityQ131538
Source-derived summary

The capybara (/kæp.ɪˈbɑːr.ə, -băr′ə/ kap-uh-BAR-uh) or greater capybara (Hydrochoerus hydrochaeris) is the largest living rodent, native to all countries in South America except Chile. It is a semiaquatic herbivore that inhabits savannas and dense forests, living near and in bodies of freshwater and feeding mainly on grasses and aquatic plants.

Together with the lesser capybara, it constitutes the genus Hydrochoerus. Its other close relatives include guinea pigs and rock cavies, and it is more distantly related to the agouti, the chinchilla, and the nutria.

The capybara is a highly social species that usually lives in groups of 10–20 individuals, but can be found in groups as large as 100. It is hunted for its meat and hide and for grease from its thick fatty skin.

Etymology

Its common name is derived from Tupi ka'apiûara, a complex agglutination of kaá (leaf) + píi (slender) + ú (eat) + ara (a suffix for agent nouns), meaning "one who eats slender leaves", or "grass-eater". The genus name, hydrochoerus, comes from Greek ὕδωρ (hýdor "water") and χοῖρος (choíros "pig, hog") and the species name, hydrochaeris, comes from Greek ὕδωρ (hýdor "water") and χαίρω (chairo "feel happy, enjoy").

Classification and phylogeny

The capybara and the lesser capybara are both rodents belonging to the subfamily Hydrochoerinae along with the rock cavies. The living capybaras and their extinct relatives were previously classified in their own family Hydrochoeridae.

Editorial summary

The public source identifies “Capybara” as species of large semiaquatic rodent in the cavy family. This brief keeps that definition visible, then builds a research path around Capybara, species and large.

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This entry incorporates text from Capybara” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.