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.
The male Common Ostrich has mostly black plumage with white primary feathers and a white tail. Females and juveniles are grayish-brow and white. It is the tallest of any bird and can occasionally reach 9 feet. It has the fastest land speed of any bird and can reach 40 mph. The ostrich is the only bird that secretes urine separately from feces. Image by: 1, 3,6, 9) Dick Daniels - South Africa 2, 7) Sandy Cole - South Africa 4, 8) Dick - Tanzania 5, 10) Dick - Kenya 1) Chick 2, 3, 4, 5) female 6) juvenile male 7 -9) male