How radioactive rhino horns could help save the species from poachers

The black market trade in rhino horns is driving the species to near extinction. Now, scientists at a rhino orphanage in the Bushveld of South Africa are trying to protect them from poaching in a rather surprising way. John Yang reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy