Whether on four paws, with fins, or wings, the animal kingdom moves at a rapid pace. Some animals seem to simply ignore the speed limit. But what is actually the fastest animal in the world? A ...

I was 20 years old when I learned that pronghorns, an animal you may have never heard of, used to dominate the American landscape. When we think of North America before European settlers arrived, ...

Everybody knows that a cheetah is the world’s fastest land animal. But what if you take the size of the animal into account? If you measure speed by body-length-per-second, a tiny mite about the size ...

Speed in the animal kingdom comes in many forms, from powerful land sprints to lightning-fast dives beneath the waves. Whether it's in the air, on land, or through water, each species has evolved in ...

Wolves can attain speeds of 30-plus mph in bursts. But in an open chase they cannot come close to catching the planet’s second fastest land animal – the North American pronghorn. These elegant ...

Sarah the cheetah, who holds the world record as fastest land animal, has died at 15. She was euthanized Wednesday "due to a diminishing quality of life," the Cincinnati Zoo says in a statement. The ...