Radioactive Rhino Horns: A New Weapon Against Poaching

Scientists are trying a new way to stop people from poaching rhinos, who are killed for their horns.

They're injecting the rhinos' horns with tiny amounts of a special substance that gives off a signal, like a secret code.

This signal can be detected by special machines at borders and airports.

If a rhino horn is illegally taken and sold, the machines can find it.

Tests have shown that this process doesn't hurt the rhinos and the horn becomes useless to people.

The goal is to make it harder for poachers to sell rhino horns and save the animals.