Some sports depend on animals more than on people.
This was once a popular sport in the U.S. Homing pigeons were transported to a designated place, then released to fly home. Several pigeons would compete at a time, and the first pigeon to reach home won. This sport is very popular in Alaska. Each dog team harnessed to a sled is controlled by a driver, called a musher. The teams are timed from start to finish, and the fastest team wins.