When all around you is dry, but the tree you’re standing beneath is unmistakably raining, inevitably you ask yourself questions. When Gus (aka “the African Plant Hunter”) was told as a youngster that the raindrops were actually insect urine, he believed it, and warned all his friends to stay away from the “Rain Tree”. Now, as he takes us on a brief tour of the Philoneptera violacea tree, he puts the record straight and gives us the real reason a rain tree rains. And it doesn’t hurt that he’s standing in front of the magnificent scenery of the Chilojo cliffs in Gonarezhou National Park in Zimbabwe.