there are only 5,000 left in the world. in the country in southern africa there are only 1700 still alive. thousands of miles away in this convention hall in texas, the dallas safari club says it has a way of helping save this an gent beast. the group will auction off a permit from the namibian government to hunt and kill one black rhino. the club s executive director ben carter says sacrificing one animal for the greater good is smart conservation. it s going to be able to raise more money than any other way you could do it to help provide for all the conservations needs we need for the black rhino. reporter: the auction sparked death threats along with a vicious debate over how to save this endangered species. critics call the auction a sad joke. marcia, tell us where you re joining us from. i m sitting in nambi arksz. reporter: marcia is ceo of save the rhino trust and works