
Dogs are naturally wired to chase cars and other moving objects. When they don’t have appropriate outlets or training, they chase bicycles or even cats or kids. Chasing some things, though, can get dogs into trouble with owners, the neighbors, or even get them hurt or killed. Learn how to train your dog to stop chasing.
Why Dogs Chase
Dogs evolved as endurance specialists. Wild canines, like wolves and coyotes, use speed to run down prey. Domesticated dogs are but one step away from their wild cousins and have retained this instinct to run. The urge to pursue moving objects is hard-wired into the canine brain. This is a natural hunting behavior that is demonstrated whenever your pup chases a ball, Frisbee, or squirrel.
Through selective breeding, people have redirected these hunting instincts so that the Labrador stops short of a killing bite and instead retrieves the prey with a soft mouth, for example. Herding breeds continue to feel compelled to chase after and “push” moving objects like sheep in a specific direction.
Consider Your Dog's Breed
All dogs enjoy the chase, but particular breeds developed for specific kinds of work are typically more obsessive than others. Consider your dog's breed if you have to have chasing issues. Greyhounds, whippets, and most terriers are attracted to pursuing and even attacking small animals. These breeds can pose a danger to cats, smaller dogs, or farm animals like chickens or rabbits. Shepherd breeds are more likely to chase larger livestock, as well as cars, bicycles, and jogging people in a misguided effort to herd them.



Before You Train Not to Chase
To teach what not to chase, your pup must first be trained to leash walk nicely and to understand the sit and stay commands. These are essential in keeping your dog where you want it. Once those are mastered, your dog can learn not to chase.
Problems and Proofing Behavior
The owner of a dog that chases inappropriately is liable if the dog hurts someone or damages property. The chasing dog is also at risk of being injured or killed if it chases a car, or by the other animal or person defending themselves. In some areas, property owners are within their rights to shoot dogs that harass livestock.
You'll want to be able to redirect your dog's urge to chase with any sudden stimulant, so be sure to practice this technique with a variety of passersby. If you practiced first with a bike passing, try it with a slow-moving car, and have someone repeat the exercise while jogging. Be sure to always secure your dog's leash when an unfamiliar type of passerby is near, and never let your dog chase with a long leash on and then hit the end of the leash at a full-on run. This can severely damage your dog's neck and vertebrae.
If your dog continues to chase even after training, you may want to speak with a canine behavioral specialist. Chasing behavior can be dangerous (or deadly) for the dog, especially if your dog likes to chase cars. A specialist may be able to help identify issues, breed habits, or something else that is causing your dog to constantly chase.