‘We have to change our attitude’: wildlife expert says rhino horn trade must be legalised

At the beginning of the 20th century, half a million rhinos roamed Africa and Asia. Today there are about 27,000 left on the planet. Photograph: Fiona Ayerst/Alamy

International trade in rhino horns should be legalised, a leading wildlife expert has urged.

Writing in the research journal Science, Martin Wikelski argues only carefully monitored, legitimate transactions in horns can save the world’s remaining species of rhinoceros.