Protecting the world's rhinos - by chopping off their horns Rhinos are being slaughtered in record numbers to meet the insatiable demand for their horns in countries such as China and Vietnam, where they are believed to have medicinal properties and sell for more than gold. At the world's largest rhino farm, staff are cutting off the animals' horns - not to meet this demand, but to save the rhinos' lives. A voiced AFPTV report.