A cheetah runs so fast that its legs might touch the ground only half the time it's in motion. The gazelle is fast, too ... but is it fast enough?
The fastest animal on land: The cheetah.
Cheetahs hunt by vision, not by scent.
Like commandos, they sport black marks on the inside corner of each eye, perhaps to cut the sun's glare.
Everything about a cheetah is designed for the chase.
It gains traction from claws that don't retract and paw pads with extra grip.
It'll try to creep within 100 feet from its target before bursting into action.
Clocked as fast as 71 miles per hour, at top speed, it takes about three and a half strides every second, and every minute, up to 150 breaths.
Its hind legs are so flexible they can pass the front ones.
And for almost half the time at full speed, the legs don't even touch earth.