What kind of animal is a capybara?

A capybara, the largest rodent in the world! Standing 2 feet tall at the shoulder and built somewhat like a barrel with legs, the “capy” has long, light brown, shaggy hair, a face that looks like a beaver’s, no tail, and slightly webbed feet. Originally thought to be a pig of some sort, we now know that the capybara is a rodent, closely related to cavies and guinea pigs.

Source: San Diego Zoo