South African Scientists Implement Radioactive Isotopes to Combat Rhino Horn Trafficking
South African researchers have introduced an innovative strategy aimed at combating wildlife trafficking by injecting rhinoceros horns with radioactive isotopes. This method is designed to enhance the detection of illegally trafficked horns at international borders and airports, without putting the animals at risk, reports 24brussels.
The University of the Witwatersrand in Johannesburg has initiated the Rhisotope Project, a collaboration with nuclear authorities and conservationists. The project allows the horns, once injected, to be identifiable by standard radiation detectors utilized in customs and security screenings.
This new approach addresses the ongoing crisis of poaching that has outpaced traditional conservation methods. A pilot program began with about 20 rhinos, and the official launch recently involved the injection of five additional animals.
James Larkin, chief scientific officer of the Rhisotope Project, confirmed, “We have demonstrated, beyond scientific doubt, that the process is completely safe for the animal and effective in making the horn detectable through international customs nuclear security systems.” He added that even “a single horn with significantly lower levels of radioactivity than what will be used in practice successfully triggered alarms in radiation detectors.”
Larkin further mentioned that tests proved horns could still be detected even when concealed within standard shipping containers, a tactic commonly employed by wildlife smugglers.
The University is actively encouraging private wildlife reserves and national conservation organizations to adopt this method as part of a comprehensive strategy aimed at deterrence.
This initiative arrives amid alarming statistics regarding rhino populations. The International Union for Conservation of Nature (IUCN) indicates a substantial decline, with numbers plummeting from approximately 500,000 in the early 20th century to around 27,000 today. South Africa remains home to the largest population, estimated at 16,000 rhinos, yet around 500 are poached annually.
By integrating nuclear science into conservation efforts, the Rhisotope Project could serve as a groundbreaking measure against trafficking networks. The project’s proponents are optimistic that widespread application of this technology can bolster border security and diminish the lucrative incentives that fuel rhino poaching, largely driven by international demand far beyond African borders.
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