An Emu is the second-largest living, flightless bird, and the largest would be the Ostrich. The Emu is found in Australia, and the Ostrich is from Africa. The Emu is about five feet tall, weighs 100 pounds, more or less, and can run about 30 miles per hour. The Ostrich is about nine feet tall, weighs about 330 pounds and can run about 40 miles per hour.
Ostriches live in groupings of 5 to 50 birds, they travel together and hang around with zebras and antelopes. They eat plants and insects, and because they have no teeth, they swallow pebbles that help to grind the food they swallow hole. The Emu eats bugs, vegetation, and lizards, and they also eat small stones to grind their food.