What happened

The most effective way of reducing the widespread poaching of rhinoceroses is cutting off their horns, conservationists and researchers reported Thursday in the journal Science. The study, covering seven years at 11 nature reserves in Southern Africa, found that dehorning reduced rhino poaching by 78% while other, more expensive efforts had no measurable impact.

Who said what

Rhino horns fetch tens of thousands of dollars in Asia, where they are " falsely believed to be effective at treating fevers, pain and a low sex drive in traditional medicine," said The Guardian . Dehorning rhinos — sedating the animals and cutting off their keratin horns with a chainsaw — is believed to be painless and has been used to combat poaching in Africa for decades. But until this study,

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