The capybara (Hydrochoerus hydrochaeris) is a giant cavy rodent native to South America. It is the largest living rodent and a member of the genus Hydrochoerus. Its close relatives include guinea pigs and Rock cavies, and it is more distantly...
The lesser capybara (Hydrochoerus isthmius ) is a large semiaquatic rodent of the family Caviidae found in eastern Panama, northwestern Colombia, and western Venezuela. The lesser capybara was described as a species in 1912, but was later...
Hydrochoerus gaylordi is an extinct species of capybara that lived in Grenada. This species was found in 1991 by Ronald Singer and his colleagues. The species was named after Joseph Gaylord as an acknowledgment of Singer.