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.
As far as maintaining speed -- the record human Marathon speed is about 12 mph over 26.2 miles (a 4+ minute mile). Winners of competitive sled dog mid-distance races typically run a 3+ minute mile, in races of 25-50 miles.They can go further faster than any top marathon runner.reyhounds can reach speeds of 42 MPH, well, well beyond the reach of the fastest humans who generally clock in somewhere around 20 MPH. But based on a stat I found online (who knows how crdible it is) the average dog runs 19 MPH, which would be about even with humans, if not slower.