Greyhound racing is a competitive sport where trained dogs, specifically greyhounds, race around a track. The dogs chase a mechanical lure, often resembling a small animal, which is designed to encourage them to run at high speeds. Races typically last about 30 seconds, and the fastest dog wins. This sport has a long history, with origins dating back to ancient times. Today, greyhound racing is popular in various countries, although it has faced criticism regarding animal welfare. Many organizations advocate for the humane treatment of racing dogs and promote adoption programs for retired racers.