The Ratite Runner is a job title that refers to an individual who works with ratites, which are large, flightless birds such as ostriches, emus, and rheas. The three-letter acronym EMU stands for the EMU, which is a species of ratite native to Australia. Ratite Runners are responsible for the care and maintenance of these birds, including feeding, grooming, and providing medical attention. They also monitor the birds' behavior and health, and may be involved in breeding programs.