Capybaras, also known as Hydrochoerus hydrochaeris are the worlds biggest rodents. They are native to South America. Capybaras live near water, they inhabit savannas and dense forests. Its close relatives include guinea pigs and rock cavies and it is more distantly related to the agouti, the chinchilla, and the coypu. Capybaras are a highly social animals, they can be found in groups as large as 100 indiduals however they usually live in groups of 10-20.