Zim GBC News Network
JOHANNESBURG, South Africa – In a groundbreaking move to protect rhinos, South African scientists have begun injecting radioactive isotopes into rhino horns to make them easier to detect at borders and deter poachers.
How the Rhisotope Project Works
The University of the Witwatersrand launched the Rhisotope Project, which implants low-level radioactive material into rhino horns. While harmless to the animals, the isotopes trigger airport and port radiation detectors, making smuggled horns easier to intercept.
- 20 rhinos have already been treated in successful trials.
- Radiation signals were detected even from horns sealed in shipping containers.
- The isotopes last five years before needing replenishment.
“This innovative approach turns the horns into radioactive trackers, forcing traffickers to rethink their trade,” said Professor James Larkin, the project’s lead researched.
Rhino populations have plummeted from 500,000 to just 27,000 worldwide due to poaching. South Africa alone loses 500 rhinos yearly, as horns fetch high prices in illegal markets, particularly in Asia.
“If poachers know the horns will set off alarms at every major transit point, they’ll think twice,” said conservationist Thandi Maseko.
Researchers plan to expand the project across Southern Africa, collaborating with governments and anti-poaching units. The long-term goal is to cut rhino poaching by at least 50% in the next decade.
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