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[1] A capybara is the largest rodent native to South American countries, except Chili.
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.
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Normal capybara vs lesser capybara
[1] 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.[7] Since 2002, molecular phylogenetic studies have recognized a close relationship between Hydrochoerus and Kerodon, the rock cavies,[8] supporting placement of both genera in a subfamily of Caviidae.[5]