The capybara is the largest rodent in the world, native to South America. These semi-aquatic mammals are known for their gentle and social nature, often living in groups near bodies of water such as rivers and lakes. Capybaras have short, dense fur that is usually brown or reddish, and their webbed feet make them excellent swimmers. They primarily feed on grasses and aquatic plants, and their calm demeanor allows them to coexist peacefully with a variety of other animals, including birds that often perch on their backs.