Each year, thousands of rhinos are killed by poachers seeking their horns for illegal medicinal products; but in South Africa, a unique solution to the poaching crisis may hold the key to saving the species. Veterinarians are attempting an experimental technique that stains the rhino's horn with an indelible red dye and should make it a worthless target to poachers. Vet Will Fowlds has seen for himself the dye's impact on the population, and foresees it as a valuable method in the fight to save these endangered animals from poaching.