Canine nose work is a competitive sport that tests a dog's ability to use their sense of smell to locate a target scent. Dogs of all sizes and breeds can participate and compete in nose work trials. During a trial, a dog must search for and find a hidden target scent, such as birch or anise, in a designated area. The dog is rewarded with treats or toys for correctly locating the scent, and the goal is for the dog to complete the course as quickly as possible. Nose work, nose training, scent work, scent detection, K9 nose work, search and rescue, tracking, and scent detection dog are all keywords related to this sport.