The capybara (Hydrochoerus hydrochaeris) is the world's largest living rodent, a semi-aquatic mammal closely related to guinea pigs and rock cavies. Adults typically weigh between 35 and 66 kilograms, with females generally larger than males. They are highly social animals, living in groups that typically range from 10 to 20 individuals, though dry-season aggregations around shrinking water sources can swell to well over 100. Their range spans the tropical and subtropical lowlands of South America, from the Llanos of Venezuela and Colombia through the Amazon Basin, the Pantanal wetlands of Brazil and Bolivia, and south into the grasslands of Argentina and Uruguay.
Capybaras are keystone herbivores in their habitats, grazing on grasses, aquatic plants, and bark, and their feeding patterns help maintain the structure of riverbank and floodplain vegetation. They are also a critical food source for a wide range of predators, including the jaguar (Panthera onca), ocelot (Leopardus pardalis), anaconda (Eunectes murinus), and caiman. The IUCN Red List currently lists the species as Least Concern, reflecting its broad range and adaptable nature, but localized hunting for meat and hide, habitat loss from agricultural expansion, and persecution by ranchers who view them as livestock competitors represent real and ongoing pressures in parts of their range.
No projects have listed this species yet. If you run a project that protects the Capybara, you can add it to Wildlife Connect.