Capybara (Hydrochoerus hydrocoerus: Caviidae) Jaguar food. Another species known as the Lesser Capybara (H. isthmius) is found in Panama, north western Colombia and western Venezuela. They are the worlds largest extant rodent. Adults get to 1.2 m (4 ft long) and 60 cm (2 ft) tall weighing from 40-50 kg (88-110 lbs). Ro Cuiab, south of Porto Jofre, Pantanal, Mato Grosso, Brazil. River banks and shoreline especially with creeping river grass at ca. 128 m (420 ft) elevation.