The term 'Ostriches' Smaller Cousins' refers to Emus, which are large, flightless birds native to Australia. They are the second-largest living bird by height, after the Ostrich. Emus have long necks and legs, and can reach up to 6.2 feet in height and weigh up to 90 pounds. They are omnivorous, eating a variety of plants and animals, including insects, seeds, and small reptiles. Emus are also known for their fast running speed, reaching up to 31 mph.