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.
How fast can a cheetah run? A single female cheetah in captivity was accurately timed to run approximately 200 meters in 7 seconds, giving a speed of 29 meters per second (or 64 miles per hour). The cheetah had a running start, and the results are the average of three separate runs with rest in between.