South African researchers have embarked on a groundbreaking initiative to combat rhino poaching by injecting their horns with a non-harmful radioactive material. This pioneering endeavor, led by the University of the Witwatersrand, aims to create a reliable system for detecting illegally smuggled rhino horns, enhancing conservation efforts amidst staggering poaching rates.
Radioactive Rhino Horns: South Africa's New Anti-Poaching Initiative

Radioactive Rhino Horns: South Africa's New Anti-Poaching Initiative
South African scientists implement innovative technology to safeguard endangered rhinos from poachers.
In a remarkable step towards wildlife protection, South African scientists have introduced an anti-poaching strategy that involves injecting rhino horns with a radioactive substance. The initiative, called the Rhisotope Project, was developed by researchers from the University of the Witwatersrand in collaboration with the International Atomic Energy Agency. The aim is to equip customs officers with the ability to identify and trace smuggled horns as they pass through international borders.
Despite the harmless nature of the radioactive material to the rhinos, the project reflects an urgent response to the ongoing crisis in which hundreds of these iconic animals fall victim to poaching each year. “At least one animal a day is still being poached,” stated professor James Larkin, a key figure in the project. He emphasized the importance of proactive measures in tackling the escalating poaching crisis, with the Rhisotope Project designed to disrupt illegal horn trafficking.
With an investment of approximately £220,000 ($290,000) and six years of rigorous research, the pilot study has shown promising results, demonstrating that the injected substance does not endanger the health of the rhinos. Remarkably, the innovation has proven effective in detecting horns even from within large shipping containers, thereby enhancing traceability.
Prominent conservation advocate Jamie Joseph has praised the project as "innovative and much needed." She acknowledged, however, that while technological advances are beneficial, lasting solutions must also include improved legislation and strong political commitment to effectively address the crisis.
Each year has seen over 400 rhinos poached since 2021, according to the conservation charity, Save the Rhino. Jessica Babich, the head of the Rhisotope Project, reaffirmed the importance of the initiative, stating, "Our goal is to deploy the Rhisotope technology at scale to help protect one of Africa's most iconic and threatened species."
The majority of rhino horns find their way to Asian markets, where they are sought after for traditional medicinal practices and as symbols of wealth. Meanwhile, black rhinos are listed as critically endangered while white rhinos are deemed threatened. The Rhisotope Project stands as a crucial step in not only preserving rhinos but also upholding a vital aspect of natural heritage in South Africa.
Despite the harmless nature of the radioactive material to the rhinos, the project reflects an urgent response to the ongoing crisis in which hundreds of these iconic animals fall victim to poaching each year. “At least one animal a day is still being poached,” stated professor James Larkin, a key figure in the project. He emphasized the importance of proactive measures in tackling the escalating poaching crisis, with the Rhisotope Project designed to disrupt illegal horn trafficking.
With an investment of approximately £220,000 ($290,000) and six years of rigorous research, the pilot study has shown promising results, demonstrating that the injected substance does not endanger the health of the rhinos. Remarkably, the innovation has proven effective in detecting horns even from within large shipping containers, thereby enhancing traceability.
Prominent conservation advocate Jamie Joseph has praised the project as "innovative and much needed." She acknowledged, however, that while technological advances are beneficial, lasting solutions must also include improved legislation and strong political commitment to effectively address the crisis.
Each year has seen over 400 rhinos poached since 2021, according to the conservation charity, Save the Rhino. Jessica Babich, the head of the Rhisotope Project, reaffirmed the importance of the initiative, stating, "Our goal is to deploy the Rhisotope technology at scale to help protect one of Africa's most iconic and threatened species."
The majority of rhino horns find their way to Asian markets, where they are sought after for traditional medicinal practices and as symbols of wealth. Meanwhile, black rhinos are listed as critically endangered while white rhinos are deemed threatened. The Rhisotope Project stands as a crucial step in not only preserving rhinos but also upholding a vital aspect of natural heritage in South Africa.