As demand for ivory rises in the Far East, this Panorama special - made jointly with the BBC's Natural History Unit - goes undercover in central Africa and China to ask whether the African elephant can survive in some parts of the continent. Last year saw the highest number of large seizures of illegal ivory for over two decades - despite a 23 year global ban on its international sale. Panorama visits an elephant orphanage to see the impact of the killing on the young and, with access to Interpol's largest ever ivory operation, confronts the dealers in Africa and in China - now the world's biggest buyer of illegal ivory. For those following White Heat, you might have to fiddle with your SKY Box as the final instalment of the series is also on at 9pm over on BBC2.