Herbal supplements are one type of dietary supplement. An herb is a plant or plant part (such as leaves, flowers, or seeds) that is used for its flavor, scent, and/or potential health-related properties.
The Greyhound â The King of Canine Racers. When you think of fast dogs, the tall and lean Greyhound is the first breed that usually springs to mind. This long-legged, smooth-coated racing breed has been clocked at speeds up to 45 miles per hour, sparking its nickname: the 45-mph couch potato.
Fueled by as many as 12,000 calories per day, these 50-pound dogs are capable of sustaining speeds of 12 mph for more than six hours when pulling a sled. Obviously, when not pulling a 200-pound sled, huskies and other sled dogs are much faster than this -- although not as fast as greyhounds and other fleet-footed dogs.