Cheetahs are the fastest land animals on Earth, capable of reaching speeds up to 70 mph! But what makes them so fast? From their lightweight bones to powerful muscles and aerodynamic bodies, discover ...

The reason the cheetah is the fastest land animal on Earth has been explained by scientists. The big cat hits the 'sweet spot' where their muscles can contract the fastest relative to their size.

Narrator: Cheetahs are the fastest land animal in the ... Here's where our special adaptations come in. The tendons and muscles in our legs are very springy. They act like a pogo stick, converting ...

Freya’s back muscles were doing a good job of stabilizing ... she will never directly participate in the Smithsonian’s cheetah breeding program, said Dr. Delaski. But she might be a good ...