Caplin Rous Capybara

There is also an extant "lesser capybara", Hydrochoerus isthmius, with a disjoint range in Colombia, Venezuela and Panama.
Ecology
Capybara are semi-aquatic mammals found wild in much of South America (including Colombia, Ecuador, Bolivia, Venezuela, Brazil, Argentina, Guyana, Suriname, French Guiana, Uruguay, Peru, and Paraguay) in densely forested areas near bodies of water, such as lakes, rivers, swamps, ponds and marshes, as well as flooded savannah and along rivers in tropical forest. They roam in home ranges of 25–50 acres (10–20 ha).