Factors like nutrition and muscle strength and size are all involved when it comes to your running speed, and your genetics ...

Another difference between jogging, running, and sprinting is foot strike. When walking, jogging, and running, many runners ...

Bears are astonishingly fast ... while more agile, can quickly climb trees or outmaneuver humans in dense forests. If you encounter a bear, your instinct to run could put you in greater danger.

Researchers at a conservation center in Thailand tested many variables to study an elephant’s gait and how they accelerate when facing danger What Is an Aurora? (03:13) National Treasure: The ...