updated 11:54 AM EST, Thu October 02, 2014

"We saw so much money and time wasted in conservation programmes simply through inefficiency. We were convinced that we could come up with new, effective measures that would make a real difference"

Is it a toy? Is it a plane? Is it a solution? It may look small and inconspicuous, but it just might help conservationists win a big and bloody war: the one against rhino poachers. Ecologist Vanessa Stephen looks at conservation drones in action.

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