We all know that cheetahs, which can run up to 75 mph, are the fastest land animal on Earth, but why is this? Why couldn’t elephants, for example, run faster? Scientists now think it’s because ...

The Galápagos tortoise is roughly the same size as a cheetah, yet the fastest it can “run” is 0.17 miles per hour. Though it seems intuitive that bigger animals should move faster—a longer ...

The scientists used a formula to determine how fast the theropods were running. The researchers used the relation between the hop height of the animal, which was found by measuring the footprint ...

It's actually mid-sized animals that run almost as fast as their bodies theoretically can go: the cheetah, the marlin, or the falcon, for example. It turns out that reaching your top speed ...

Since the effects of drag don’t increase with mass, it’s the dominating factor capping speed in smaller animals. “If you were infinitely heavy, you would run infinitely fast, according to ...

The running ... animals. You’ll also learn about the factors that impact running speed along with things you can do to run faster. Florence Griffith-Joyner has held the record for the fastest ...

Why are cheetahs the fastest runners on Earth? Physiologists studying lizard locomotion have found that running speed peaks in midsize animals, whose bodies hit a sweet spot of long legs and low ...

In contrast, cheetahs can run more than twice as fast, reaching some 62 miles per hour (100 kph). The study was undertaken by animal physiologist Tom Weihmann of the University of Cologne and his ...