Microchipping your pet involves placing a small device the size of a grain of rice under the skin between the shoulders. This device transmits a radio signal of a number unique to your pet which can be read by a microchip scanner. This number is then linked to your information to prove that the animal belongs to you. All veterinary clinics and animal control facilities have scanners so chipped animals can be returned to their owners.
While microchips are a great way to show that an animal belongs to you, they do not act like a tracking device. They cannot tell you where your animal is if it gets lost. The animal must be found and scanned for the microchip to identify you as the owner. As the owner, you need to keep the microchip company up-to-date with your current contact information.
Thousands of pets are returned home every year because of microchips!