Carl De Souza / AFP - Getty Images

A Kenya Wildlife Services vet administers a drug to a tranquilized wild elephant in Amboseli National Park, Kenya, on Thursday, March 14, 2013. The International Fund for Animal Welfare School of Field Studies and KWS partnered to fit tracking collars to elephants in and around the park. The exercise has cost $100,000 US and will monitor six elephants for 20 months to ascertain migratory routes and other data. There are currently 60 collared elephants in Kenya out of a total population of around 37,000.

Carl De Souza / AFP - Getty Images

A wild elephant mother tries to help her tranquilized juvenile offspring after it was darted by a Kenya Wildlife Services vet.

Carl De Souza / AFP - Getty Images

A Kenya Wildlife Services vet holds a tranquilizer gun as he views wild elephants from a helicopter in Amboseli National Park, Kenya on Thursday, March 14, 2013.