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.
Although the speediest of land animals cannot match the times of the fastest flyers, the cheetah, recognized as the worldâs fastest runner, is able to run 70 MPH for short distances. From a standing start, the cheetah can accelerate to 45 MPH in two seconds and cover a distance of sixty-five yards.