A product is inserted subcutaneously, either manually or mechanically, into domesticated or wild animals to assist in tracking domesticated or wild animals. The product and methods of using include GPS transmitting or any other electronic device to locate and find a lost pet, livestock, migratory movements...http://www.google.fr/patents/US7821406?utm_source=gb-gplus-shareBrevet US7821406 - System for monitoring and tracking animals