Greyhounds Are the Fastest Dog Breed and Can Outrun a Cheetah

The Greyhound is the undisputed speed champion of the dog world, capable of reaching speeds up to 45 miles per hour in just a few strides. While cheetahs can hit higher peak speeds around 70 miles per hour, they can only maintain that pace for a few hundred yards before overheating. Greyhounds, on the other hand, can sustain speeds of 35 to 40 miles per hour for over a mile, making them faster over distance. Their incredible speed comes from a combination of aerodynamic body shape, powerful hind legs, and a flexible spine that acts like a spring. Greyhounds have been bred for thousands of years for coursing game and racing, and their streamlined bodies are perfectly engineered for speed. Despite their athletic prowess, Greyhounds are surprisingly lazy couch potatoes when not running and make gentle, calm house pets.