what is the fastest breed of
Quick Answer. The fastest dog breed in the world is the greyhound. Greyhound dogs can reach speeds up to 45 miles per hour with unsubstantiated reports of exceptional greyhounds reaching more than 50 miles per hour. The speed of greyhounds means that greyhound owners must take special care of their pets.
Quick Answer. The American quarter horse is the fastest breed of horse in the world, followed closely by the thoroughbred. However, Arabian horses outpace other breeds in endurance racing.