Individuals involved in Wildlife research and investigation exercise GPS on the animals that are being studied
. The tracking devices help keep track of the relocation patterns which in turn help to trace the breeding locations. The tracking devices that are used are very small in size availing the researcher to place the device on the body parts of an animal. For example, in case of birds, the device is placed on their legs. For other animals, it could be easily placed on the collar, or glued onto the skin. These units are specially designed to be water-resistant and to withstand air and water pressures. GPS is also used for trained dogs by the police forces during search missions.