Capybara is an herbivore, grazing mainly on grasses and aquatic plants,[5][11] as well as fruit and tree bark.[13] An adult capybara will eat 6 to 8 pounds (2.7 to 3.6 kg) of grasses per day.[16] Capybara's jaw hinge is non-perpendicular and they thus chew food by grinding back and forth rather than side-to-side.[8]