Giraffes (Giraffa camelopardalis) are in danger of extinction.  One way to stop the plummeting numbers is to learn more about how giraffes use their habitat and how much area do they need in order to survive and reproduce.  Our preliminary results ​​found that some giraffes live in a home range that is four times the size of Manhattan Island.  Our work was featured in “Last of the Longnecks”, also called “​Walking with Giraffes.”  Our novel approach to deciphering the determinants of giraffe movements should help map key areas for giraffe conservation because we can uncover the key environmental factors that influence how and why giraffes travel where they do.