Ratites are a group of flightless birds that includes ostriches, emus, rheas, cassowaries, and kiwis. Synonyms for Ratites include "large running birds," "flightless avian fauna," and "ratite birds." These birds are characterized by their flat breastbones and lack of a keel, which makes them unable to fly. They have strong legs and are adapted for running and foraging on the ground. Ratites are found in various parts of the world, from Africa to Australia and South America. They are important to local cultures and economies, as they are used for their meat, eggs, and feathers.