A veterinary doctor monitors the respiratory rate of a sedated female elephant as she is fitted with a geographical positioning system (GPS) collar in the Garamba National Park, northeastern Democratic Republic of Congo (DRC) on February 7, 2016. Chronic insecurity, regional conflict, tough terrain and isolation make Africa's Garamba national park in North-eastern Democratic Republic of Congo perhaps the most difficult place on the continent to do conservation / AFP / TONY KARUMBA