Reviewed by Jennifer Robinson, MD on0/, 014. Weight cycling is losing weight and regaining it over and over. It's called yo-yo dieting when it happens because of dieting. Weight cycles can be big (50 pounds or more) or small (5-10 pounds).
Ostriches share the order Struthioniformes with the kiwis, and other ratites. It is distinctive in its appearance, with a long neck and legs and the ability to run at maximum speeds of about 70 km/h (45 mph), the top land speed of any bird. The ostrich is the largest living species of bird and lays the largest egg of any living bird.
Male ostriches have black feathers and female ostriches have gray and brown feathers. Both males and females have white feathers on their wings and tails. Male ostriches can be 1.8 - 2.7 meters / 6 - 9 feet tall, while female ostriches are 1.7 - 2 meters / 5.5 - 6.5 ft tall. They can run with a speed of about 65 kilometers per hour/40 miles per hour. Habitat. Ostriches now only live in Africa. They live in open grassland called savannas in the Sahel, and in parts of East Africa and south-west Africa. Some ostriches live in areas of the Sahara desert. There used to be ostriches in Middle East in the 20th century and, further back, also in Asia.