The fastest animals in the world fly, swim, and run on land. Most of them are birds you probably have never seen before, especially the Frigate Birds that can stay up in the sky for a week.Here are ...

While the big cats may be able to reach speeds of 75 mph, it's nothing compared to the top speeds of other animals. It's not even the fastest mammal! Here are the fastest animals on Earth.

The world's fastest animals on earth, the speed heroes ... Their very narrow, thin body and legs make them among the world's quickest small mammals, perfectly suited to a lifestyle of providing ...