GPS mapping and scientific research

When we think of GPS most of us would automatically think, it goes in my car and tells me turn by turn exactly where to go, but they can be use for much more than that.  A good example of how global positioning systems can help the research of science and mapping is to look at Australia's way of tracking and researching the kangaroos.  They go out and capture the kangaroos.  When they have them captured they place a tracking collar on them using the GPS system.  With this they are able to track every move of each one of them and it allows the scientists to get a look at their life and better preserve them. They know if they have gotten hit by a car, where their feeding grounds are, the impact of high numbers of kangaroos in specific places and much more.  While the scientist are tracking the kangaroos they can also map their every movement with exact locations used on the map which allows them to retrace and keep track of the data and compare with newer maps and fresh data.