This picture shows a GPS collar for elephant tracking:
It's part of an interesting project (described here) that aims at:
Through GPS tracking, STE has gathered fine-scale data on elephant movements, identifying specific elephant corridors and core parts of their range, and highlighting the need for an ecosystem approach to conservation by protecting the whole elephant range, rather then only isolated, protected areas. (...) Collared elephants are being monitored closely and data on their behaviour, associations and reproductive status are being gathered as part of two concurrent Ph.D. studies by George Wittemyer (Berkley University) and Henrik Rasmussen (Oxford University). (...) Elephant movements determined from GPS tracking have assisted in defining the elephant range in Samburu and Laikipia and thus delineating the boundaries of the site for Monitoring of Illegal Killing of Elephants (MIKE), part of a global programme to study trends in elephant mortality and the potential impact of ivory trade on populations of African and Asian elephants.
A similar project has been conducted in Myanmar by national zoo scientists of Alaungdaw Kathapa National Park. It lead to this kind of map:
