(250801) -- LIMPOPO, Aug. 1, 2025 (Xinhua) -- A researcher prepares to inject a radioisotope dosage into a white rhino's horn at the Waterberg Biosphere Reserve in Limpopo Province, South Africa, on July 30, 2025. South African researchers have started injecting small amounts of detectable radioactive isotopes into rhino horns to deter poachers and traffickers, according to a statement released Friday by the University of the Witwatersrand (Wits University). (South Africa's Wits University/Handout via Xinhua)
