Rhino horn illegal remedies to be halted

Trade in rhino horn has been banned since 1977, but demand has surged along with economic growth in East and South-East Asia, say researchers Duan Biggs, Franck Courchamp, Rowan Martin and Hugh Possingham in a paper in the journal, Science.

With retail prices skyrocketing from about $4700 a kilogram in 1993 to around $65,000 a kilo last year, poaching has become more sophisticated.

"Rhino horn is now worth more, per unit weight, than gold, diamonds, or cocaine," the article says.

Rhino horn is composed entirely of keratin and regrows when cut.

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