Capybara

The capybara is the world's biggest rodent, a gentle giant that wades through South American waterways. These water-loving mammals munch on grasses and plants while keeping cool in rivers and swamps. Their webbed feet make them strong swimmers, and they're often spotted lounging in groups along muddy banks.

• Webbed feet help them paddle through water with ease.
• They graze on grasses and aquatic plants like floating salad.
• Social animals that live in groups near freshwater sources.