One of the principal forms of horse racing, which is popular in many
parts of the world, is Thoroughbred racing. Harness racing is also popular
in the eastern United States and more popular than thoroughbred racing in
Canada and parts of Europe. Quarter horse and Arabian racing are also popular
in the western United States and Florida.
The breeding, training and racing of horses in many countries is now
a significant economic activity as, to a greater extent, is the gambling
industry which is largely supported by it. Exceptional horses can win millions
of dollars and make millions more by providing stud services, such as horse breeding.
