This is the largest living rodent in the world and is also called chigüire and carpincho.
It is a member of the genus Hydrochoerus, of which the only other extant member is the lesser capybara (Hydrochoerus isthmius).
Its close relatives include guinea pigs and rock cavies, and it is more distantly related to the agouti, the chinchilla, and the coypu.
Native to South America, the capybara inhabits savannas and dense forests and lives near bodies of water. It is a highly social species and can be found in groups as large as 100 individuals, but usually lives in groups of 10–20 individuals.
The capybara is not a threatened species but is hunted for its meat and hide and also for grease from its thick fatty skin which is used in the pharmaceutical trade.