Start with the paper airplane. Throw it into the air and watch it fly. The cheetah has a long, thin body to create less air resistance while they are running, just as a paper airplane flies easily through the air. The cheetahs aerodynamic build helps it run so fast. This is the length of a cheetah leg.
Cheetahs have very long legs in proportion to their body length compared to other cats.
This helps increase their stride length, which is 23 feet when they are running at full speed. The cheetah has a very flexible spine, much more flexible than our own. This adaptation also helps the cheetah increase its stride length by allowing it to move its legs further apart and closer together while running. The cheetah's tail acts like a rudder, helping to maintain balance when the cheetah changes direction while running. The cheetah has a very large heart to help it run so fast, quickly pumping their blood to supply oxygen to working muscles.