The emu is the largest endemic bird of Australia and the second largest in the world after the ostrich. It cannot fly, but it reaches the height of 2 meters and car reach speeds of 50 km/h. Its long legs allow for strides as long as 275 cm. They eat a variety of plants and insects and they can survive for weeks without eating. They swallow rocks, glass and metal pieces to digest their food. They drink infrequently, but take in copious amounts of water when the opportunity arises. Their feathers block the heat allowing the meu to be very active even during mid-day high temperatures.
They reproduce during May and June and they are not monogamous. Quarrels between females for access to mates are very frequent. The females can breed several times during a season. The males incubate the eggs and face significant weight loss because during this period they do not eat. The eggs hatch after about eight weeks and the newborns are being taken care of by the males. They can live in the wild for 10 to 20 years.