some p people think k it may bes few as 300,000 animals, so we might bebe losing 1/6 of t the contininental populatition of africa's elelephants every year. peters: in many countries in africaca, the elephant i is alry ecologically extinctct. unshots, elephantrumpets narrator: every 20 minutes, an elephant is killeded for its tusks. the reason: greed. the price of ivory has skyrocketed. raw ivory sells for as much as $3,000 per pound on the black market, but the cost for humanity is unfathomable. elephants may be gone in 10 years. ruggiero: the problem begins very simply wiwith demand. narrator: and china drives the demand for ivory. knights: china now is estimated to be 70% of the world's ivory market. there is a tradition of ivory carving, but also, of course, the massive growth of the chinese economy. narrator: around 300 million people make up china's middle class today. that's more than the population of the united states, and they are looking to spend their money on luxury goods. ivory has particular appeal because of its long history in china. it has been carved there for more than 2