Can drones help save the rhino? – video

Drones are operating above some of South Africa's national parks in an attempt to deter and intercept poachers. Poaching is at record levels on the continent, devastating elephant and rhino populations. These drones can fly 2.5 hours on a single charge and up to 22 miles from the control vehicle. The operators say they have seen a direct link between their presence in an area and a fall in poaching