Several greyhounds before a race.
Greyhound racing is an organized, competitive industry in which greyhound dogs are raced around a track. The dogs chase a lure (traditionally an artificial 'hare' or 'rabbit') on a track until the greyhounds cross the finish line. As with horse racing, greyhound races often allow the public to wager on the outcome.
In many countries, greyhound racing is purely amateur and for enjoyment. In other countries (particularly Australia, Ireland, Macau, Mexico, Spain, the UK and the US), greyhound racing is part of the gambling industry, similar to although far less profitable than horse racing. There is some popular concern in countries with greyhound gambling regarding the well-being of the dogs; the effectiveness of industry efforts to address these concerns is a topic of some debate. A greyhound adoption movement has arisen to assist retired racing dogs in finding homes as pets.