Scientists in South Africa are making rhino horns radioactive to fight poaching

Aug 1, 2025 - 09:03
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Scientists in South Africa are making rhino horns radioactive to fight poaching
A sedated rhino is being prepared before a hole is drilled into its horn and isotopes carefully inserted, at a rhino orphanage in Mokopane, South Africa, Thursday, July 31, 2025.

A South African university launched an anti-poaching campaign Thursday to inject the horns of rhinos with radioactive isotopes that it says are harmless for the animals but can be detected by customs agents.

(Image credit: Alfonso Nqunjana)

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