Emus are large, ostrich-like avians native to Australia. They are the second largest living bird in the world, after the ostrich, and can reach up to 6.2 feet tall and weigh up to 90 pounds. Emus are flightless birds, but they have powerful legs that allow them to run at speeds of up to 30 miles per hour. They are omnivorous, eating a variety of plants, insects, and small animals. Emus are also known for their long necks and distinctive brown feathers.