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 cheetah is famously the fastest land animal on the planet, running at up to 120 kilometres an hour (75 miles per hour). Its extreme speed means it achieves a kill on around half of its hunts. That's impressive, but you surely knew it already, because cheetahs are so over-exposed.