A working dog is a dog used to perform practical tasks, as opposed to pet or companion dogs.
Detection dog patrolling in London
Guide dog in Brazil
Search and rescue dog working in Seoul
Dogs herding sheep in Australia
Dog training is a kind of animal training, the application of behavior analysis which uses the environmental events of antecedents and consequences to modify the dog behavior, either for it to assist in specific activities or undertake particular tasks, or for it to participate effectively in contemporary domestic life. While training dogs for specific roles dates back to Roman times at least, the training of dogs to be compatible household pets developed with suburbanization in the 1950s.
A dog trainer with the United States Navy, which primarily trains using positive reinforcement.
Rudd Weatherwax trains Lassie.
Positive reinforcement can involve a game or toy, such as this tennis ball.
Clicker-training using a metal cricket