Conservation scientists in South Africa are injecting rhino horns with radioactive isotopes. The doses are too weak to harm ...

In Mokopane, South Africa, researchers at the University of Witwatersrand, Johannesburg have launched the Rhisotope Project, ...

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

A new initiative in South Africa is safely placing radioactive isotopes into rhino horns and using existing nuclear security infrastructure to detect and deter illegal trade. Sean Hogan has more.