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.
They can run up to 4O miles an hour, emus covering 9 feet, ostriches 25 feet in a stride. Their toes--emus and other flightless fowl have three and ostriches have two, compared to the four toes of flying birds--are made for speed, as fewer toes mean less ground contact, adding more speed.