Hydrochoerus hydrochaeris, commonly known as the capybara, is the world's largest rodent, native to South America's wetlands, riverbanks, and forests. They are highly social animals, often found in groups, and are excellent swimmers, using water as a refuge from predators. Capybaras have webbed feet, a barrel-shaped body, and a distinctive short, dense coat.

Hydrochoerus hydrochaeris, commonly known as the capybara, is native to South America. Its geographical distribution includes countries such as Brazil, Venezuela, Colombia, Argentina, Uruguay, Peru, Paraguay, and Bolivia. It is also found in the eastern parts of the Andes.

Capybaras inhabit regions with abundant water sources. They are typically found in savannas, dense forests, and wetlands, often near rivers, lakes, and marshes. The regions they inhabit generally have a tropical to subtropical climate, characterized by warm temperatures and seasonal rainfall.

Capybaras are semi-aquatic mammals, well-adapted to both land and water environments. They play a crucial role in their ecosystem as grazers, feeding on a variety of grasses and aquatic plants. Their presence influences the vegetation structure and provides a food source for predators. Capybaras are also known for their social behavior, often living in groups that can help in predator avoidance and resource sharing.