Emus are large Australian birds that are the second-largest living bird by height, after the ostrich. They are flightless birds with long necks and legs, and can reach up to 1.9 meters in height. Emus have a distinctive brown plumage, and can run at speeds of up to 50 km/h. They are omnivorous, eating a variety of plants and insects. Emus are found throughout Australia, and are an iconic species of the country.