In South Africa, scientists have devised a new method to deter poaching and safeguard rhinos’ horns. Unlike the past practice of de-horning rhinos to discourage poachers, which disrupted their social structures, researchers at a nursery in Limpopo have implanted radioactive isotopes into the horns of rhinos. This radiation can be detected at border crossings, enabling authorities to identify anyone who has dealt with a rhino horn.
Twenty rhinos received these isotopes as part of the project, and Professor James Larkin, who heads the initiative, explained that this approach leverages a global network of radiation monitors designed to prevent nuclear terrorism. Meanwhile, Professor Nithaya Chetty, the dean of the science faculty at Witwatersrand, assured that the radiation dose used on the rhinos was minimal and extensively tested for any adverse effects on the animals.
Rhino horn is highly sought after in Asia for its supposed medicinal properties despite its use in sculptures being more common with elephant ivory. Poaching continues to pose a significant threat to South Africa’s rhino population each year. By employing innovative solutions like this radioactive isotope technology, researchers hope to combat poachers and protect these vulnerable animals from extinction.
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