Dog racing is a competitive sport where dogs, typically breeds like Greyhounds, race around a track. The races are often held in front of spectators, and the dogs chase a mechanical lure, which simulates prey. The goal is to see which dog can complete the course the fastest. The sport has a long history and is popular in various countries, particularly in the United States and the United Kingdom. While it can be entertaining, dog racing has faced criticism regarding the treatment and welfare of the animals involved, leading to discussions about regulations and ethical practices in the industry.