The Cheetah

Cheetahs are, without a doubt, the fastest creatures in the world on land. (There’s probably some wickedly fast creatures in the ocean that we still don’t even know about). Why would a cheetah need to be able to run so fast? The only animal that comes in a close second to the Cheetah’s amazing speed is its favorite prey, the gazelle. In order to catch up with a meal that’s as swift as the wind, the cheetah had to develop the ability to run as fast, or faster than the gazelle, or face the alternative – starvation. Pretty strong motivation for practicing their wind sprints.

Cheetahs are an excellent example of the effects of natural selection on creating a super fast, aerodynamic hunting cat. There are several species of large cats in the world, including leopards, lions, jaguars, mountain lions, ocelots, and tigers, but none of them can match the speed of the cheetah. Natural selection works when those creatures having the best physical ability, body design, and behaviors to adapt to their environment and survive, where other creatures without those “cool features” will not survive to pass on their genes to another generation. There are many other large wild cats who look and behave very differently from the cheetah, but have adapted to survive in their environments in other ways. Look at the cool features on the cheetah that help to make it such an awesome speed demon.

Although the Cheetah is one fast runner, he can only maintain that incredible velocity for about 200 to 300 yards/274 meters. These high speeds only allow the cat to overtake its prey within short distances, so cheetahs must still rely on stealth, sneaking, and the element of surprise to get close enough to the gazelle before giving chase.

Adaptations that enable the cheetah to run as fast as it does include large nostrils that allow for increased oxygen intake, and an enlarged heart and lungs that work together to circulate oxygen efficiently. During a typical chase its respiratory rate increases from 60 to 150 breaths per minute.While running, in addition to having good traction due to its semi-retractable claws, the cheetah uses its tail as a rudder-like means of steering to allow it to make sharp turns, necessary to outflank prey animals that often make such turns to escape.