It’s always nice to see dogs run with unbridled joy and wild abandon. After all, there's rarely a time when they look happier. When these little guys are hitting their max speed, you’re no ...

The fastest human on Earth today is Usain Bolt. He set the 100-meter world record by running it in just 9.58 seconds. At his peak speed during a race, he was clocked at 44 km/h. Meanwhile ...

It's not even the fastest mammal! Here are the fastest animals on Earth. Follow Tech Insider: On Facebook More from Science Cheetahs have a reputation for speed. While the big cats may be able to ...

To kill their prey or flee from predators, the fastest animals on the earth have developed brilliant speed to assist them through their worlds. The world's fastest animals on earth, the speed ...