Trivia: What is the fastest dog breed in the world?
Whippet
Labrador retriever
Greyhound
Poodle
The correct answer is Greyhound
So why is this answer correct? : Greyhounds can reach speeds of up to 45 mph, making them the fastest dog breed and also one of the fastest species of sprinters in the world. Just like cheetahs, greyhounds run using a double-suspension gallop by contracting and extending. This means that all four of their feet leave the ground at the same time. However, just because greyhounds are fast doesn’t mean they’re always active — the dogs can sleep up to 18 hours a day.