The GPS unit above is a Garmin etrexs that provide the user with the necessary tools to obtain latitude, longitude, elevation, and the ability to mark and save routes. GPS is a used for a variety of purposes. Its uses are found everywhere from the military to inside peoples’ cars as a navigation system.

In the field of wildlife science the GPS unit is used to mark critical points during data collection. The most exciting use of GPS use lies with tracking wild animals. GPS units placed on collars eliminated the labor-intensive task of tracking animals with a radio collar and receiver. GPS collars allow scientists to remain in the office and download information directly from the animal’s collar. From this data scientists can determine an animal’s home range, or the areas to which it travels during its day, and the particular types of habitat it prefers.